This page describes a proposed update to the minimal list of 15 standard field names in the Vorbis I specification. Please keep discussion confined to the Discussion page (or, better, the <vorbis-dev> mailing list).
After the proposal has been discussed, and accepted or rejected, this page should be deleted.
To determine what field names are being used in the wild, the following resources were analysed:
- Reactor Core proposal
- Carnival of Technology proposal
- Proposals on the XiphWiki VorbisComment page
- OggImporter to Spotlight
- EasyTAG tagging program (routine "ogg_tag.c" in the source code)
- Mp3tag tagging program (post in the Mp3tag Forum)
The analysis has been presented as an Excel spreadsheet (note that it contains two sheets).
The following modest list of additions to the minimal list in the specification is proposed:
TRACKTOTAL– compliments the existing
DISCNUMBER– used if part of a multi-disc album
DISCTOTAL– total number of discs in a multi-disc album
SOURCEMEDIA– recommended because two different field names have been proposed
ENCODED-BY– see VorbisComment page
ENCODER– see VorbisComment page
METADATA_BLOCK_PICTURE– see VorbisComment page
The field name
SOURCEMEDIA could be dropped if Xiph does not wish to prescribe field names. (The alternative which has been proposed to store this information is
There are also two proposals for a field name to store barcodes,
EAN/UPN. If Xiph does wish to prescribe field names then
PRODUCTNUMBER could be included. It is not included only because storing barcodes is thought to be esoteric.
RIGHTS-URI has not been included because this is structured metadata. VorbisComments are inherently unstructured and this should be respected.
The field name
REMIXER is not proposed as its use is covered by the existing