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'''This is MrC's scratch space for work-in-progress Wiki pages.'''
==General==
Media Center helps you manage, organize and view your files by maintaining a collection of properties on a per-file basis. Each file managed by Media Center belongs to a particular media type (eg. audio, video, image), and each media type has a predefined set of properties available and valid for use.


: <span style="color: red">'''Note:'''</span> The Expression language page is complete and is now at its permanent home: [[ Media_Center_expression_language#Functions | Expression language functions]]
Examples of file properties are ''Artist'', ''Album'' and ''Genre'' for audio files, ''Actor'', ''Director'', and ''Aspect Ratio'' for movies, and ''Width'', ''Height'' and ''Focal Length'' for images.


: Note: The Smartlist and Search - Rules and Modifiers page is now at its permanent home: [[Smartlist_and_Search_-_Rules_and_Modifiers|Smartlist and Search - Rules and Modifiers]]
Initially, a file's properties are imported when the file is imported, or created when the file is created by Media Center (e.g. when ripping a CD or DVD). Typically, this data comes from a file's internal metadata (commonly referred to as '''tags'''), or is looked up from external databases. In addition, several library tools are available to assist in creating or modifying properties and tags.


: Note: The Regex() page is now at its permanent home: [[Media_Center_expression_language#Regex.28....29:_Regular_expression_pattern_matching_and_capture|MC expression language page]]
Media Center can also save a file's properties to the internal metadata within the physical file itself. These tags are then available for use by other programs that support the specific file types. The tags supported by a given file type are file type-specific, but there is often commonality or overlap in various media or file formats. Media Center helps manage this by automatically mapping essentially similar tags with different names into a standard set of properties.


: Note: The File Properties page is now at its permanent home: [[File_Properties_%28tags%29|File Properties (tags) page]]
In addition, Media Center allows creation of an almost limitless number of custom (or user) properties. This allows for managing information about files that is not predefined by Media Center or by a given format's standard tags. These custom properties may also be saved to a file's tags, should the format support user-defined or extensible tags.


----
Saving file properties to the physical file allows tags to be re-imported by Media Center, and used by other programs on a variety of systems. While typical metadata consumes a trivial amount of extra disk storage (relative to the file's size), larger metadata such as cover art, lyrics or extensive notes may be more noticeable, especially when files are exported to smaller devices such as handhelds. See [[Save File Properties in Disk Files]] for more information.


Caution: Debris Ahead...
The table below shows the standard default properties available in Media Center. File properties are listed and managed under:


----
'''Tools > Options... > Library & Folders > Manage Library Fields...'''


... and more to come...
Note here that '''properties''' are called '''fields'''. This is primarily a technical and pedantic distinction. The terms '''properties''', '''fields''', and '''tags''' become synonymous in common language, but do nonetheless maintain distinct meanings. It might help to think of a spreadsheet, where column headers are fields, rows are files, and a row of individual cell values are the file's properties. If each row were saved to an external file, the row's cells would be called tags.

As briefly mentioned above, properties help manage and organize related files. They can also be searched. In all of these, either directly or indirectly, one or more library fields is used in the construction.

When used in expressions or searches, a field is expressed by surrounding its name with square brackets. For example, ''Album Artist'' is written and used as '''[Album Artist]'''. Field names are case-insensitive, meaning there is no distinction between upper- or lower-case letters. They are typically written in ''camel-case'' to help make them more distinguishable, especially in complex expressions.

==Field Specifications==
{| style="float: right;" border="0" cellspacing="0" cellpadding="1"
|-
| [[File:Library_Fields.png]]
|}

Each field in Media Center has several defined characteristics. These are shown in the marked-up example dialog to the right, '''Manage Library Fields'''. Each field:

# Has a standard, unchangeable name
# Has a display name and its plural version (not currently shown in table)
# Is valid for the specified media/file types (Audio, Image, Video, Data, TV)
# Is either "User" data, or is automatically calculated via expression
# Stores a particular type of data (see ''Field Data Types'')
# May or may not be relational (no default fields are currently relational)
# Has rules about its editability (see ''Field Edit Types'')
# May have a list of acceptable values
# May be stored in file tags (when possible)
# May have one or more search keywords used for queries
# May be searched by default when performing search queries
# May be hidden from normal view/usage (these field names are shown in italics in the ''Media Center Predefined Fields'' table below)


{| width="45%" border="1" cellspacing="0" cellpadding="2"
|+ align="top" | '''''Field Data Types'''''
! style="background: #f9f9f9;" width="80pt" | Data Type
! style="background: #f9f9f9;" | Description
|-
| align="center" | String || An unformatted sequence of characters.
|-
| align="center" | Integer || A whole number (no decimal portion).
|-
| align="center" | Decimal || A floating point number.
|-
| align="center" | Percentage || A decimal from 0 to 1 indicating 0% to 100%.
|-
| align="center" | List || A semicolon-separated list of strings.
|-
| align="center" | Date || A complex type that is either date-only, or date and time. (TBD: need refs)
|-
| align="center" | Unknown || An unspecific catch-all type, not specifically defined.
|}



{| width="45%" border="1" cellspacing="0" cellpadding="1"
|+ align="top" | '''''Field Edit Types'''''
! style="background: #f9f9f9;" width="80pt" | Edit Type
! style="background: #f9f9f9;" | Description
|-
| align="center" | Standard || A free-format, editable field.
|-
| align="center" | Clear-only || A clear-only field, whose value is set or updated by Media Center.
|-
| align="center" | Large || A free-format, editable field, used for large data (e.g. lyrics, notes, descriptions). (TBD: recommended for data larger than XXX characters).
|-
| align="center" | Not editable || A non-editable field.
|-
| align="center" | File || A file-path specification field.
|-
| align="center" | 5 Star || A selectable, 5-star graphical field, typically used for ratings.
|-
| align="center" | Calculated, Editable || A calculated, editable field, whose initial value is automatically set.
|-
| align="center" | Calculated,<br />Not editable || A calculated, non-editable field whose value is automatically set.
|}


==Predefined Fields==
The table below lists Media Center's default fields. The rows list the available fields, and the columns indicate how the field is defined, and gives a brief explanation of the fields usage or meaning. Where applicable, additional links and field-specific information is also listed. The value for some fields is calculated by Media Center. When possible, the expression used to derive this value is also shown. In some cases, this value may be modified. Beneath a field name is a list of the default Search Keyword(s), if available, which are used for field-specific searching within Media Center.

(TBD: in the source code, fields are grouped by certain categories (eg. statistics). are these useful to show?)

The '''Stored''' column indicates if the field is stored in file tags. The '''Search''' column indicates if the field should be searched when using Media Center's Search area.

Note: Some fields are used internally by Media Center to maintain state information, and are not viewable in panes, categories, or the Tag Action Window. These are typically configured through various options and settings dialogs.

{| border="1" cellspacing="0" cellpadding="1" width="100%"
|+ align="top" | '''''Media Center Predefined Fields'''''
! width="25%" align="left" valign="bottom" style="background: #f9f9f9;" | &nbsp;Field Name<br />&nbsp;''search keyword(s)''
! width="10%" align="center" valign="bottom" style="background: #f9f9f9;" | Media Types
! style="background: #f9f9f9;" | &nbsp;S&nbsp;<br/>t<br/>o<br/>r<br/>e<br/>d
! style="background: #f9f9f9;" | &nbsp;S&nbsp;<br/>e<br/>a<br/>r<br/>c<br/>h
! width="10%" align="center" valign="bottom" style="background: #f9f9f9;" | Data Type<br />Edit Type
! align="left" valign="bottom" style="background: #f9f9f9;" | Description
|-
| &nbsp;'''Access Rating''' <br />&nbsp;''accessrating=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| Specifies the access rating when access control is in effect.

''See also:'' [[Access_Control|Access Control]]
|-
| &nbsp;'''Actors''' <br />&nbsp;''actors=''
| align="center" | Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | List<br />Standard
| A semicolon-separated list of a movie's actors.
|-
| &nbsp;'''Album''' <br />&nbsp;''album=&nbsp;&nbsp;al=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&#10003;'''
| align="center" | String<br />Standard
| The name of the album.
|-
| &nbsp;'''Album Artist''' <br />&nbsp;''albumartist=''
| align="center" | Audio
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| Designates the artist to use for compilation albums.

''See also:'' [[Album_Artist_and_Album_Artist_(Auto)|Album Artist and Album Artist (Auto)]]
|-
| &nbsp;'''Album Artist (auto)''' <br />&nbsp;''autoalbumartist=''
| align="center" | Audio
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Calculated, Editable
| Automatically calculated based on the contents of an album's Artist tracks.

''Expression:'' AlbumArtist()

''See also:'' [[Album_Artist_and_Album_Artist_(Auto)|Album Artist and Album Artist (Auto)]]
|-
| &nbsp;'''Album Gain''' <br />&nbsp;''albumgain=&nbsp;&nbsp;ag=''
| align="center" | Audio
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Decimal<br />Clear-only
| Automatically calculated gain for an album, based on [[Replay_Gain|Replay Gain]].

''See also:'' [[Album_Gain|Album Gain]]
|-
| &nbsp;'''Album Type''' <br />&nbsp;''albumtype=''
| align="center" | Audio
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Calculated, Not editable
| Automatically calculated value indicating if the album has a single artist or multiple artists, and if the album is complete.

''Expression:'' AlbumType()

''See also:'' [[Multiple_Artist_Albums#Complete_Albums|Multiple Artist Albums#Complete Albums]]
|-
| &nbsp;'''Altitude'''
| align="center" | Image
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| Camera's GPS altitude when photo was taken.

''See also:'' [[Photo_Tagging|Photo Tagging]]
|-
| &nbsp;'''Aperture'''
| align="center" | Image
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| Camera's aperture setting used to create the photo.

''See also:'' [[Photo_Tagging|Photo Tagging]]
|-
| &nbsp;'''Artist''' <br />&nbsp;''artist=&nbsp;&nbsp;ar=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&#10003;'''
| align="center" | String<br />Standard
| Track artist, or movie's director.

''See also:'' [[Album_Artist_and_Album_Artist_(Auto)|Album Artist and Album Artist (Auto)]], [[YADB|YADB]]
|-
| &nbsp;'''Artist - Album (Year)'''
| align="center" | Audio
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Calculated, Not editable
| Automatically calculated field used for album grouping.

''Expression:'' Clean([Artist] - [Album] /([FormatDate([Date, 0), Year)/))
|-
| &nbsp;'''Aspect Ratio''' <br />&nbsp;''aspect=''
| align="center" | Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| Video aspect ratio.
|-
| &nbsp;'''''Audio Analysis Info'''''
| align="center" | Audio
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| Automatically calculated data created and used by audio analysis engine.

''See also:'' [[Audio_Settings_and_Analysis|Audio Settings and Analysis]], [[Analyze_Audio|Analyze Audio]]
|-
| &nbsp;'''Author'''
| align="center" | Data
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | List<br />Standard
| A semicolon-separated list of a document's authors.
|-
| &nbsp;'''Band''' <br />&nbsp;''band=&nbsp;&nbsp;bd=''
| align="center" | Audio
| &nbsp;'''&#10003;'''
| &nbsp;'''&#10003;'''
| align="center" | String<br />Standard
| Designates a track's band.
|-
| &nbsp;'''Bios''' <br />&nbsp;''bios=&nbsp;&nbsp;bio=''
| align="center" | Audio
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Large
| Musician or group biography. (Musicmatch)
|-
| &nbsp;'''Bit Depth''' <br />&nbsp;''bitrate=''
| align="center" | Audio Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Not editable
| Audio / video bit depth.
|-
| &nbsp;'''Bitrate'''
| align="center" | Audio Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&#10003;'''
| align="center" | Integer<br />Not editable
| Audio / video bitrate, in bits per second (bps).
|-
| &nbsp;'''Bookmark'''
| align="center" | Audio Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Clear-only
| Specifies the bookmark location for resumption of playback.
|-
| &nbsp;'''BPM''' <br />&nbsp;''bpm=''
| align="center" | Audio
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Standard
| Beats-per-minute, calculated automaticaly during audio analysis.
|-
| &nbsp;'''Budget'''
| align="center" | Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| A movie's financial budget.
|-
| &nbsp;'''Camera'''
| align="center" | Image
| &nbsp;'''&nbsp;'''
| &nbsp;'''&#10003;'''
| align="center" | String<br />Standard
| Camera EXIF tag.

''See also:'' [[Photo_Tagging|Photo Tagging]]
|-
| &nbsp;'''Caption''' <br />&nbsp;''caption=''
| align="center" | Image
| &nbsp;'''&#10003;'''
| &nbsp;'''&#10003;'''
| align="center" | String<br />Standard
| An image's caption.
|-
| &nbsp;'''Catalog #'''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| ***TBD***
|-
| &nbsp;'''''Category Image Category'''''
| align="center" | Image
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| ***TBD***
|-
| &nbsp;'''Channels'''
| align="center" | Audio Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Not editable
| Number of playback channels
|-
| &nbsp;'''Cinematographer'''
| align="center" | Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | List<br />Standard
| A semicolon-separated list of a movie's cinematographer(s).
|-
| &nbsp;'''Comment''' <br />&nbsp;''comment=&nbsp;&nbsp;c=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&#10003;'''
| align="center" | String<br />Standard
| A general use comment field.
|-
| &nbsp;'''Complete Album''' <br />&nbsp;''completealbum=''
| align="center" | Audio
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Not editable
| Indicates if an album is a complete album.

''See also:'' [[Multiple_Artist_Albums#Complete_Albums|Multiple Artist Albums#Complete Albums]]
|-
| &nbsp;'''Composer''' <br />&nbsp;''composer=''
| align="center" | Audio
| &nbsp;'''&#10003;'''
| &nbsp;'''&#10003;'''
| align="center" | String<br />Standard
| The composer of a piece or work, typically used with classical music.
|-
| &nbsp;'''Compression'''
| align="center" | Audio Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| The compression type and scheme used for compressed audio/video.
|-
| &nbsp;'''Conductor''' <br />&nbsp;''conductor=''
| align="center" | Audio
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| The conductor of a piece or work, typically used with classical music.
|-
| &nbsp;'''Copyright''' <br />&nbsp;''copyright=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| Media copyright information.
|-
| &nbsp;'''Country''' <br />&nbsp;''country=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | List<br />Standard
| A semicolon-separated list of countries relevant to the media.
|-
| &nbsp;'''Credits''' <br />&nbsp;''credits=''
| align="center" | Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | List<br />Standard
| A semicolon-separated list of movie credits.
|-
| &nbsp;'''Custom'''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| General use custom field.
|-
| &nbsp;'''Custom 1'''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| General use custom field (may not exist).
|-
| &nbsp;'''Custom 2'''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| General use custom field (may not exist).
|-
| &nbsp;'''Custom 3'''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| General use custom field (may not exist).
|-
| &nbsp;'''Date''' <br />&nbsp;''date=&nbsp;&nbsp;d=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | Date<br />Standard
| General date of media.
|-
| &nbsp;'''Date (filename friendly)'''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Calculated, Not editable
| A version of Date that has been cleaned for use in filenames.

''Expression:'' FormateDate(Filename)
|-
| &nbsp;'''Date Created'''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Unknown<br />Not editable
| A file's creation date/time as reported by the system.
|-
| &nbsp;'''Date Imported''' <br />&nbsp;''dateimported=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Unknown<br />Not editable
| The date the media was imported into the MC / MJ database.

''See also:'' [http://wiki.jriver.com/index.php/Imported_%28Date%29]
|-
| &nbsp;'''Date Modified'''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Unknown<br />Not editable
| A file's modification date/time, as reported by the system.
|-
| &nbsp;'''Date Recorded'''
| align="center" | Video TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | Date<br />Standard
| The date/time of a video recording.
|-
| &nbsp;'''Day'''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Calculated, Editable
| Day segment of Date.

''Expression:'' FormatDate(Day)&DataType=[Number]
|-
| &nbsp;'''Description'''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&#10003;'''
| align="center" | String<br />Large
| A general description of the media.
|-
| &nbsp;'''Dimensions'''
| align="center" | Image Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Calculated, Not editable
| Automatically calculated image/video dimensions.

''Expression:'' Clean([Width] x [Height])
|-
| &nbsp;'''Direction'''
| align="center" | Image
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| Camera's directional heading when photo was taken.

''See also:'' [[Photo_Tagging|Photo Tagging]]
|-
| &nbsp;'''Director''' <br />&nbsp;''director=''
| align="center" | Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | List<br />Standard
| A semicolon-separated list of a movie's directors.
|-
| &nbsp;'''Disc #'''
| align="center" | Audio Video
| &nbsp;'''&#10003;'''
| &nbsp;'''&#10003;'''
| align="center" | Integer<br />Standard
| The disc number, for multi-disc audio or video sets.

''See also:'' [[Multidisc_Albums|Multidisc Albums]]
|-
| &nbsp;'''Distributor'''
| align="center" | Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | List<br />Standard
| A semicolon-separated list of a movie's distrubutors.
|-
| &nbsp;'''''DLNA Server Info'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| Internal information for the MC DLNA server.
|-
| &nbsp;'''Duration''' <br />&nbsp;''length=&nbsp;&nbsp;duration=''
| align="center" | Audio Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Unknown<br />Not editable
| The duration of an audio / video track.
|-
| &nbsp;'''''DVD Video Info'''''
| align="center" | Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| Internal information used for a DVD.
|-
| &nbsp;'''''Edit Info'''''
| align="center" | Image
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| Internal information used for image editting.
|-
| &nbsp;'''Editor'''
| align="center" | Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | List<br />Standard
| A semicolon-separated list of the editor(s) used to capture/create a video.
|-
| &nbsp;'''Encoding Settings'''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| ''Description''
|-
| &nbsp;'''Episode'''
| align="center" | Video TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| Episode number of a television / video series.
|-
| &nbsp;'''Episode URL'''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| URL of a single podcast episode.
|-
| &nbsp;'''Events''' <br />&nbsp;''events=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&#10003;'''
| align="center" | List<br />Standard
| A semicolon-separated list to specifiy relevant events for the media.
|-
| &nbsp;'''Feed URL'''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| URL of a podcast feed.
|-
| &nbsp;'''File Size''' <br />&nbsp;''size=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Unknown<br />Not editable
| A file's on disc size (human readable, unitized and rounded).
|-
| &nbsp;'''File Type''' <br />&nbsp;''filetype=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&#10003;'''
| align="center" | String<br />Standard
| The type of file (eg. mp3, jpg, flac, pdf).
|-
| &nbsp;'''Filename''' <br />&nbsp;''filename=&nbsp;&nbsp;location=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&#10003;'''
| align="center" | Unknown<br />File
| The full pathname to the location of a file.
|-
| &nbsp;'''Filename (name)'''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Calculated, Editable
| The name-only portion of [Filename].

''Expression:'' FileName()
|-
| &nbsp;'''Filename (path)'''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Unknown<br />Calculated, Editable
| The path-only portion of [Filename].

''Expression:'' FilePath()&DataType[Path]
|-
| &nbsp;'''Flash'''
| align="center" | Image
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| Indicates if a camera's flash was used to take image.

''See also:'' [[Photo_Tagging|Photo Tagging]]
|-
| &nbsp;'''''Flickr Info'''''
| align="center" | Image Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| ''Description''
|-
| &nbsp;'''Focal Length'''
| align="center" | Image
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| The lens focal length used when a image was captured.

''See also:'' [[Photo_Tagging|Photo Tagging]]
|-
| &nbsp;'''FPS''' <br />&nbsp;''framerate=&nbsp;&nbsp;fps=''
| align="center" | Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Decimal<br />Standard
| The number of frames-per-second in a video/movie.
|-
| &nbsp;'''Genre''' <br />&nbsp;''genre=&nbsp;&nbsp;g=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&#10003;'''
| align="center" | String<br />Standard
| Genre of media.

''See also:'' [[YADB|YADB]]
|-
| &nbsp;'''''Get Cover Art Info'''''
| align="center" | Audio Video Data
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| ''Description''
|-
| &nbsp;'''Gross Revenue'''
| align="center" | Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| A movie's gross reported revenue.
|-
| &nbsp;'''Grouping'''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| For support of the iTunes Grouping field.

''See also:'' [http://yabb.jriver.com/interact/index.php?action=printpage;topic=51694.0]
|-
| &nbsp;'''Height''' <br />&nbsp;''height=''
| align="center" | Image Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Not editable
| The height dimension of an image/video (see also Dimensions above).
|-
| &nbsp;'''Image File''' <br />&nbsp;''imagefile=''
| align="center" | Audio Video
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | Unknown<br />Not editable
| The name of the associated artwork for audio/video.
|-
| &nbsp;'''Instrument'''
| align="center" | Audio
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| A song's primary instrument.
|-
| &nbsp;'''Intensity''' <br />&nbsp;''intensity=''
| align="center" | Audio
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Standard
| A musical intensity metric automatically calculated during audio analysis. <br />''Values:'' 1, 2, 3, 4, 5
|-
| &nbsp;'''ISO'''
| align="center" | Image
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| The ISO standard film speed used when an image was captured.

''See also:'' [[Photo_Tagging|Photo Tagging]]
|-
| &nbsp;'''Keywords''' <br />&nbsp;''keyword=&nbsp;&nbsp;keywords=&nbsp;&nbsp;kw=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&#10003;'''
| align="center" | List<br />Standard
| A semicolon-separated list of user-defined keywords.
|-
| &nbsp;'''Language'''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | List<br />Standard
| A semicolon-separated list of languages.
|-
| &nbsp;'''Last Played''' <br />&nbsp;''lastplayed=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Unknown<br />Clear-only
| Date / time the file was last played or viewed.
|-
| &nbsp;'''Last Skipped''' <br />&nbsp;''lastskipped=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Unknown<br />Clear-only
| Date / time the file was last skipped.

''See also:'' Skip Count
|-
| &nbsp;'''Latitude'''
| align="center" | Image
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| Camera's GPS latitude when photo was taken.

''See also:'' [[Photo_Tagging|Photo Tagging]]
|-
| &nbsp;'''''Library Server Info'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| Internal information used to manage state for Library Server.
|-
| &nbsp;'''''Library Server Key'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Not editable
| Internal authorization key used to help secure Library Server.
|-
| &nbsp;'''''Library Server URL'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| URL used to specify location of Library Server.
|-
| &nbsp;'''Longitude'''
| align="center" | Image
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| Camera's GPS longitude when photo was taken.

''See also:'' [[Photo_Tagging|Photo Tagging]]
|-
| &nbsp;'''Lyricist'''
| align="center" | Audio Video
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| The lyricist resonsible for a work.
|-
| &nbsp;'''Lyrics''' <br />&nbsp;''lyrics=''
| align="center" | Audio Video
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Large
| User-stored lyrics or transcription.
|-
| &nbsp;'''Media Sub Type''' <br />&nbsp;''mediasubtype=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&#10003;'''
| align="center" | String<br />Standard
| More specific sub-classification of Media Type. <br />''Values:'' Adult, Audiobook, Home Video, Karaoke, Movie, Music Video, Other, Podcast, Radio, Remix, Short, Single, TV Show
|-
| &nbsp;'''Media Type''' <br />&nbsp;''mediatype=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&#10003;'''
| align="center" | String<br />Standard
| General classification of media type. <br />''Values:'' Audio, Image, Video, TV, Data, Playlist
|-
| &nbsp;'''Mix Album''' <br />&nbsp;''mixalbum=''
| align="center" | Audio
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Not editable
| Used to specify if an album is a mix album.
|-
| &nbsp;'''Month'''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Calculated, Editable
| Month segment of Date.

''Expression:'' FormatDate(Month)&DataType=[Month]
|-
| &nbsp;'''Mood''' <br />&nbsp;''mood=''
| align="center" | Audio
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| General mood classification of a song. (Musicmatch)
|-
| &nbsp;'''MPAA Rating''' <br />&nbsp;''mpaa=''
| align="center" | Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| A movies MPAA rating.
|-
| &nbsp;'''MPAA Rating Description'''
| align="center" | Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| A textual description of MPAA rating.
|-
| &nbsp;'''Music By'''
| align="center" | Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | List<br />Standard
| A semicolon-separated list of people responsible for a movie's music.
|-
| &nbsp;'''Name''' <br />&nbsp;''name=&nbsp;&nbsp;title=&nbsp;&nbsp;n=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&#10003;'''
| align="center" | String<br />Standard
| The primary name assosciated with a file.
|-
| &nbsp;'''Notes''' <br />&nbsp;''notes=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Large
| General notes assosciated with a file.
|-
| &nbsp;'''Number Plays''' <br />&nbsp;''numberplays=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Clear-only
| An automatically updated statistic indicating the number of times a file has been played/viewed.

''See also:'' [[Changing_the_number_of_plays|Changing the number of plays]]
|-
| &nbsp;'''Orchestra'''
| align="center" | Audio
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| The name of the orchestra responsible for performing a piece, typically used with classical music.
|-
| &nbsp;'''Original Title'''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| The original title given to a work.
|-
| &nbsp;'''Peak Level''' <br />&nbsp;''peaklevel=''
| align="center" | Audio
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | Percentage<br />Clear-only
| An automatically calculated value indicating the percentage of an audio track's maximum level before clipping would occur.

''See also:'' [[Overflow_Handling|Overflow Handling]], [[Technical_Information_on_Replay_Gain_Adjustment|Technical Information on Replay Gain Adjustment]], [[Analyze_Audio|Analyze Audio]], [http://yabb.jriver.com/interact/index.php?action=printpage;topic=64042.0]
|-
| &nbsp;'''People''' <br />&nbsp;''people=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&#10003;'''
| align="center" | List<br />Standard
| A semicolon-separated list of people assosciated with a work.
|-
| &nbsp;'''Period'''
| align="center" | Audio
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| A musical period, typically used with classical music.
|-
| &nbsp;'''Places''' <br />&nbsp;''places=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&#10003;'''
| align="center" | List<br />Standard
| A semicolon-separated list of places assosciated with a work.
|-
| &nbsp;'''''Playback Channel Key'''''
| align="center" | TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Not editable
| ''Description''
|-
| &nbsp;'''''Playback Device'''''
| align="center" | TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| ''Description''
|-
| &nbsp;'''Playback Info'''
| align="center" | Audio Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| ''Description''
|-
| &nbsp;'''Playback Range''' <br />&nbsp;''playbackrange=''
| align="center" | Audio Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| Specifies the begin and end times for A-B repeat.

''See also:'' [http://yabb.jriver.com/interact/index.php?topic=53866.msg368141#msg368141]
|-
| &nbsp;'''Preference''' <br />&nbsp;''preference=''
| align="center" | Audio
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| A subjective classification of a user's preference for a song. (Musicmatch)
|-
| &nbsp;'''Prequel'''
| align="center" | Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | List<br />Standard
| The prequel to a movie.
|-
| &nbsp;'''Producer''' <br />&nbsp;''producer=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | List<br />Standard
| A semicolon-separated list of responsible producer(s)
|-
| &nbsp;'''Protection Type''' <br />&nbsp;''protectiontype=''
| align="center" | Audio Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| Indication of the type of DRM protection.
|-
| &nbsp;'''Publisher'''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| A work's publisher.
|-
| &nbsp;'''Rating''' <br />&nbsp;''rating=&nbsp;&nbsp;r=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&#10003;'''
| align="center" | Integer<br />5 Star
| A 5-star user rating.
|-
| &nbsp;'''''Read Only''''' <br />&nbsp;''readonly=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Not editable
| Indicates if the file is read-only. <br />''Values:'' 0, 1
|-
| &nbsp;'''''Recording Rule ID'''''
| align="center" | TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Not editable
| An internal ID representing a TV recording rule.
|-
| &nbsp;'''Removable''' <br />&nbsp;''removable=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Calculated, Not editable
| Indicates if the file resides on removable media.

''Expression:'' IsRemovable()
|-
| &nbsp;'''Replay Gain''' <br />&nbsp;''replaygain=&nbsp;&nbsp;rg=''
| align="center" | Audio
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | Decimal<br />Clear-only
| An automatically calculated value indicating the gain to be applied to an audio track.

''See also:'' [[Replay_Gain|Replay Gain]], [[Album_Gain|Album Gain]], [[Audio_Settings_and_Analysis|Audio Settings and Analysis]], [[Analyze_Audio|Analyze Audio]]
|-
| &nbsp;'''Rotation'''
| align="center" | Image
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Standard
| The rotation (in degrees) applied to an image.
|-
| &nbsp;'''Sample Rate'''
| align="center" | Audio Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Not editable
| The rate of sampling for an audio/video file.
|-
| &nbsp;'''Screenwriter''' <br />&nbsp;''screenwirter=''
| align="center" | Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | List<br />Standard
| The screenwriter responsible for a movie.
|-
| &nbsp;'''Season'''
| align="center" | Video TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| The season of a movie/video series.
|-
| &nbsp;'''Sequel'''
| align="center" | Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | List<br />Standard
| The sequel to a movie.
|-
| &nbsp;'''Series'''
| align="center" | Video TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&#10003;'''
| align="center" | String<br />Standard
| The series information for a movie or TV show.
|-
| &nbsp;'''Series Description'''
| align="center" | Video TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&#10003;'''
| align="center" | String<br />Standard
| A description of the series for a movie or TV show.
|-
| &nbsp;'''Shutter Speed'''
| align="center" | Image
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| The shutter speed used to capture an image.

''See also:'' [[Photo_Tagging|Photo Tagging]]
|-
| &nbsp;'''Situation''' <br />&nbsp;''situation=''
| align="center" | Audio
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| A subjective choice of situations for when playing the song would be appropriate or relevant. (Musicmatch)
|-
| &nbsp;'''Skip Count''' <br />&nbsp;''skipcount=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Clear-only
| An automatically updated statistic indicating the number of times a file has been skipped.

''See also:'' Last Skipped
|-
| &nbsp;'''Soloists'''
| align="center" | Audio
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | List<br />Standard
| A semicolon-separated list of soloists for a music work, typically used in classical music.
|-
| &nbsp;'''''Stack Conversion Type'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| ''Description''
|-
| &nbsp;'''''Stack Files'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| ''Description''
|-
| &nbsp;'''Stack Tag''' <br />&nbsp;''stacktag=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| ''Description''
|-
| &nbsp;'''''Stack Top'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Not editable
| Indicates if the file is the top of a stack.
|-
| &nbsp;'''''Stack View'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Not editable
| ''Description''
|-
| &nbsp;'''''Store Field: Album ID'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| ''Description''
|-
| &nbsp;'''''Store Field: Album Popularity'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Not editable
| ''Description''
|-
| &nbsp;'''''Store Field: Amg Album Review'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| ''Description''
|-
| &nbsp;'''''Store Field: Amg Artist Bio'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| ''Description''
|-
| &nbsp;'''''Store Field: Artist ID'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| ''Description''
|-
| &nbsp;'''''Store Field: Artist Popularity'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Not editable
| ''Description''
|-
| &nbsp;'''''Store Field: Asset Code'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| ''Description''
|-
| &nbsp;'''''Store Field: Assosciated Video ID'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | List<br />Not editable
| ''Description''
|-
| &nbsp;'''''Store Field: Available Asset'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| ''Description''
|-
| &nbsp;'''''Store Field: Download Date'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Date<br />Not editable
| ''Description''
|-
| &nbsp;'''''Store Field: Genre ID'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| ''Description''
|-
| &nbsp;'''''Store Field: License Count'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| ''Description''
|-
| &nbsp;'''''Store Field: License Reissue Count'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| ''Description''
|-
| &nbsp;'''''Store Field: MP3 Available'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| ''Description''
|-
| &nbsp;'''''Store Field: MusicNet File GUID'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| ''Description''
|-
| &nbsp;'''''Store Field: New Release'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Not editable
| ''Description''
|-
| &nbsp;'''Store Field: Number of Tracks'''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Not editable
| ''Description''
|-
| &nbsp;'''''Store Field: Playlist Description'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| ''Description''
|-
| &nbsp;'''''Store Field: Playlist Guid'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| ''Description''
|-
| &nbsp;'''''Store Field: Playlist Image'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| ''Description''
|-
| &nbsp;'''''Store Field: Playlist Name'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| ''Description''
|-
| &nbsp;'''''Store Field: Playlist Type'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| ''Description''
|-
| &nbsp;'''Store Field: Purchase Date'''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Date<br />Not editable
| ''Description''
|-
| &nbsp;'''''Store Field: Purchase Description'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| ''Description''
|-
| &nbsp;'''''Store Field: Ranking'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Not editable
| ''Description''
|-
| &nbsp;'''''Store Field: Similar Artists'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| ''Description''
|-
| &nbsp;'''Store Field: Store Name'''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| ''Description''
|-
| &nbsp;'''''Store Field: Track ID'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| ''Description''
|-
| &nbsp;'''Studios''' <br />&nbsp;''studios=''
| align="center" | Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | List<br />Standard
| A semicolon-separated list of responsible movie studios.
|-
| &nbsp;'''Style'''
| align="center" | Audio
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| A musical style, typically used to further refine genre.
|-
| &nbsp;'''Tag Line''' <br />&nbsp;''tagline=''
| align="center" | Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| A movie's branding or slogan.
|-
| &nbsp;'''Tempo''' <br />&nbsp;''tempo=''
| align="center" | Audio
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| A subjective indication of a track's tempo. (Musicmatch)
|-
| &nbsp;'''Text'''
| align="center" | Data
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| General text describing a data file.
|-
| &nbsp;'''''Thumbnail Info'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Not editable
| Internal information used for view thumbnails.
|-
| &nbsp;'''''Thumbnail Info (Local)'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Not editable
| Internal information used for view thumbnails.
|-
| &nbsp;'''''Thumbnail Offset Large'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Not editable
| Internal information used for view thumbnails.
|-
| &nbsp;'''''Thumbnail Offset Medium'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Not editable
| Internal information used for view thumbnails.
|-
| &nbsp;'''''Thumbnail Offset Small'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Not editable
| Internal information used for view thumbnails.
|-
| &nbsp;'''Track #''' <br />&nbsp;''tracknumber=&nbsp;&nbsp;t=''
| align="center" | Audio
| &nbsp;'''&#10003;'''
| &nbsp;'''&#10003;'''
| align="center" | Integer<br />Standard
| The track number of the song within an album.
|-
| &nbsp;'''TV Channel'''
| align="center" | TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| The TV channel used for a TV recording.

''See also:'' [http://yabb.jriver.com/interact/index.php?topic=48127.0]
|-
| &nbsp;'''''TV Channel Number'''''
| align="center" | TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| Defines remote channel number used to tune TV Channel.

''See also:'' [http://yabb.jriver.com/interact/index.php?topic=48127.0]
|-
| &nbsp;'''''TV Tuner Input Type'''''
| align="center" | TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| ''Description''
|-
| &nbsp;'''''TV XMLTV ID'''''
| align="center" | TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| Stores ID used when mapping a channel to XMLTV data.

''See also:'' [http://yabb.jriver.com/interact/index.php?topic=48127.0]
|-
| &nbsp;'''UPC'''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| Universal Product Code.
|-
| &nbsp;'''''Usage Reporting Info'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Not editable
| ''Description''
|-
| &nbsp;'''Use Bookmarking'''
| align="center" | Audio Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| Specifies if bookmarking is active for the track / video. <br />''Values:'' Default, Yes, No
|-
| &nbsp;'''Video Standard'''
| align="center" | Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| The encoding/decoding video standard in use (eg. NTSC, PAL, SECAM).
|-
| &nbsp;'''Volume Name''' <br />&nbsp;''volume=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| The name of the volume on which the file resides.

''Expression:'' FileVolume()
|-
| &nbsp;'''''Web Media Info'''''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| ''Description''
|-
| &nbsp;'''Web Media Search'''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| ''Description''
|-
| &nbsp;'''Web Media URL'''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&#10003;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Standard
| The URL of a remote media file.
|-
| &nbsp;'''Width''' <br />&nbsp;''width=''
| align="center" | Image Video
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Not editable
| The width dimension of an image/video (see also Dimensions above).
|-
| &nbsp;'''Year''' <br />&nbsp;''year=''
| align="center" | Audio Image Video Data TV
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | Integer<br />Calculated, Editable
| Year segment of Date.

''Expression:'' FormatDate(Year)&DataType=[Number]

''See also:'' [[YADB|YADB]]
|-
| &nbsp;'''Year - Album'''
| align="center" | Audio
| &nbsp;'''&nbsp;'''
| &nbsp;'''&nbsp;'''
| align="center" | String<br />Calculated, Not editable
| An combination of Year and Album used for views, sorting, etc.

''Expression:'' Clean(FormatDate([Date, ], Year) - [Album])
|}

==Custom Fields==
Custom fields may be added with the '''Add New Field''' button in the Tools > Options > Libraries & Folders > Manage Library Fields... dialog.

== Tag Import Options==
Media Center provides a few options for the importation of tags for some file types. These options are available via Plug-in Manager > Input for the given file type. Select the Configure button for a given type, if available.

For images and video, Media Center will fill in the Album field with the year of the image or video (if the album field is otherwise empty). This puts a reasonable value there when importing directly from a digital camera. (TBD - should this be moved? Is it comprehensive wrt other types/fields?)

==Classical Music==
The tagging of classical music is unfortunately more complex and standards are lax. See [[Tagging Classical Music]].

==Photos==
For more comprehensive information on tagging photos, see [[Photo Tagging]].

==More==
* [[Check if a file contains tag information]]
* [[Edit File Properties (tags)]]
* [[Save File Properties in Disk Files]]
* [[Remove Tags]]
* [[Sync the database and tags]]
* [[Licensed Files (Windows Media Manager)]]
* [[Multiple Artist Albums]]
* [[Re-rip existing music and keep tags and statistics]]
* [[Tree & View Settings]]
* [[Library Tools]]
* [[Cover Art]]
* [http://yabb.jriver.com/interact/index.php?topic=62389.0]


For more information on tag/metadata specifications for file formats, refer to the following external websites:

* mp3: [http://www.id3.org]
* Vorbis/FLAC: [http://xiph.org/vorbis/doc/v-comment.html]
* exif: ...
* jpg: ...
* ...

Latest revision as of 19:18, 26 August 2013

This is MrC's scratch space for work-in-progress Wiki pages.

Note: The Expression language page is complete and is now at its permanent home: Expression language functions
Note: The Smartlist and Search - Rules and Modifiers page is now at its permanent home: Smartlist and Search - Rules and Modifiers
Note: The Regex() page is now at its permanent home: MC expression language page
Note: The File Properties page is now at its permanent home: File Properties (tags) page

Caution: Debris Ahead...

... and more to come...

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