Carnac

Carnac is a feature that analyzes new files as they are being Imported, and tries to fill empty database fields by using available information about the file (such as filename, length, file type, and other details). It does not alter existing tags. It is most useful for videos since video files seldom have embedded tags.

When Carnac Runs

Carnac is an extension of tag reading and is part of Media Center's Auto-Import system. When reading tags from a file on a fresh import, or when doing Update Library (from tags), Carnac will be used to fill empty fields. It makes no changes to fields that are present in the tag. It only fills empty fields.

You can also run Carnac manually by using Library Tools > Fill Properties From Filename and selecting 'Automatic' as the method. In this mode, Carnac will overwrite existing fields (instead of only empty fields). A full preview of changes is available in the tool.

Carnac and Audio

Carnac currently understand the following naming schemes for audio files:

[Artist] - [Album] - [Track #] - [Name]

[Track #] - [Name]

Examples

A filename like "Seinfeld S02E05 The Apartment.mkv" should fill:

• Series: Seinfeld
• Season: 2
• Episode: 5
• Name: The Apartment

A video in the miniDV format is considered a Home Video.

A video that's 2 hours long should be considered a Movie.

Troubleshooting Carnac

The most important thing to understand when trying to troubleshoot failures in Carnac is that it only applies to:

• New files that have been imported into MC for the first time.
• The files must have been imported via Media Center's Auto-Import system (including using the choices under Tools > Import and the background import system).

If you import files by any of the other mechanisms such as the Shell Extensions or drag-and-drop, then Carnac is not applied. Also, if a file has previously been imported into MC, and then removed, and later re-imported, Carnac is not run on the file (the previous Library record is restored instead).

Otherwise, Carnac tries to be certain before filling a tag, and does not overwrite existing fields. Be sure that the field isn't getting data via some other source (such as an embedded tag, or an existing JRSidecar file on disk).

If you encounter a common filename that doesn't get tagged correctly, please report it on Interact. Please include a full filename (including path), codec, duration, and other information about the file.