The xid tag consists of a colon-separated string that contains the provider name, the identifier type, and the identifier itself, e.g.The iTunes_CDDB_1 tag consists of a "+"-separated string that contains both the CDDB1 Disc ID and a decimal-based representation of the CD's TOC, similar to (but not the same as) the hex-based format used in the WM/MCDI, CDTOC and ITOC tags.The recommendation is that album-specific tags have a "TargetType" of 50 and track-specific tags have a "TargetType" of 30.ĭisc / Set Subtitle (for multi-disc sets) TITLE) can have different meanings based on the "TargetType" level. Unlike other tagging systems, the same tag name (e.g. Tags marked S or M denote how many instances of that tag should be allowed to be stored in a file: Single or Multiple. This document will not deal with approaches to tagging, except where certain approaches to tagging are required to make mapping work. tags that appear very similar but which have not yet been mapped are listed next to each other. tags that fall into smaller unnamed sub-categories are grouped together.ĥ. Picard is named after Captain Jean-Luc Picard from the TV series Star Trek: The Next Generation.' The. For more information, see the illustrated quick start guide to tagging. This approach allows it to utilize the MusicBrainz data as effectively as possible and correctly tag your music. tags that are more widely supported come before tags that are less widely supported.Ĥ. When tagging files, Picard uses an album oriented approach. tags are sorted alphabetically where this is relevant.ģ. a whole CD) come before tags that apply to a narrower range of data (e.g. tags that apply to a wider range of data (e.g. The below tables are organized into categories of data, and within each category the ordering is roughly as follows:ġ. Please do not rely on the content being accurate. Also note that this page might not be complete, and may never will be. The terms metadata/tag/field may be used intermittently on this page to mean the same thing. This is way beyond the scope of this page. Please note that this page is about mapping tags to each other, it does not detail nor dictate the actual way the metadata is stored nor any limitations (or lack thereof). ![]() ![]() It is hopefully also of use to developers that read and write metadata from audio files. ![]() Hopefully this will help those developers trying to transcode or move audio data around and wish to retain their tags. This page attempts to document a useful mapping between the tagging schemes used on various (audio) file formats.
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