Overview
Lidarr can write metadata for matched tracks to the audio file (e.g. ID3 tags). This data contains the track title, artist track number etc. as well as MusicBrainz identifiers. The result should be similar to that of MusicBrainz Picard, though we currently don't populate all of the fields that Picard does.
Note that if you enable this option then the files on disk will be changed. If the files are part of a torrent you are seeding then the torrent will be corrupted.
Usage
You can manually update tags using the 'Mass Editor' page or via the 'Preview Retag' buttons in the Artist and Album detail pages.
You can configure Lidarr to write tags on import using the options described below.
Options
Never
The default. Lidarr will never alter the files on disk.
For new downloads only
Lidarr will only write tags to files when they are first matched and are not already in your library. This will not alter files that are already in your library directory even when they are matched for the first time
For all files; initial import only
Lidarr will write tags to files the first time they are matched i.e. for new downloads and files already in your library.
For all files; keep in sync with MusicBrainz
Lidarr will write tags to all files and update the tags to track any changes in MusicBrainz
Scrub Existing Tags
If this option is disabled, Lidarr will set the tags it has data for and leave any other existing tags unchanged. If this option is enabled, then Lidarr will remove any tags it has not set itself.