Appendix B. Audio and metadata formats 217
B.2. Supported metadata tags
Rockbox supports different metadata formats. In general those tag formats are ID3
(v1.0, v1.1, v2.2, v2.3 and v2.4), APE (v1 and v2), Vorbis, MP4 and ASF. Few codecs
use codec specific tags, several codecs do not use any tags yet. The following table gives
an overview about what tag types rockbox supports for which audio file extension.
Note: There is always only one tag type supported for each file extension.
b
Tag type File extension
ID3 .mp1, .mpa, .mp2, .mp3, .rm, .ra, .rmvb, .tta
APE .mpc, .ape, .mac, .wv
Vorbis .ogg, .oga, .spx, .flac
MP4 .m4a, .m4b, .mp4
ASF .wma, .wmv, .asf
Codec specific .mmf, .mod, .nsf, .nsfe, .sap, .sid, .spc, .gbs, .ay, .kss, .sgc,
.vgm
None .a52, .ac3, .adx, .oma, .aa3, .aif, .aiff, .au, .snd, .shn, .vox,
.w64, .wav, .cmc, .cm3, .cmr, .cms, .dmc, .dlt, .mpt, .mpd, .hes,
.vgz
B.2.1. Featureset for generic metadata tags
Feature ID3 APE Vorbis MP4 ASF
Embedded albumart .bmp
Embedded albumart .jpg x x x x
Embedded albumart .png
Embedded cuesheet x x
Replaygain information x x x x x
Title (string) x x x x x
Artist (string) x x x x x
Album (string) x x x x x
Genre (string) x x x x x
Disc (string or number) x x x x
Track (string or number) x x x x x
Year (string or number) x x x x x
Composer (string) x x x x
Comment (string) x x x x x
Albumartist (string) x x x x x
Grouping (string) x x x
Note: Embedded album art for ASF is limited to pictures of maximum 64 KB size.
b
The Rockbox manual (version 3.14) Sansa Fuze+
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