Oma: Difference between revisions
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* Company: [[Sony]] | * Company: [[Sony]] | ||
Container format used to encapsulate [[Sony ATRAC|ATRAC3]] and ATRAC3 | Container format used to encapsulate [[Sony ATRAC|ATRAC3]] and ATRAC3+ for use with Sony's portable players. Files ending with .omg are protected with the [[OpenMG]] [[DRM]] system. | ||
The OMA file format contains a payload scrambled with a 32-bit value [http://www.waider.ie/hacks/workshop/c/mple/FILE_FORMAT_v2.txt]. The format is known to carry MP3 and ATRAC3 audio. The metadata format is a variant of ID3v2 and uses standard ID3v2 frame types, such as TIT2, TPE1, TALB and TCON. In addition to these standard frame types, TXXX and GEOB frames contain OpenMG-specific metadata. | The OMA file format contains a payload scrambled with a 32-bit value [http://www.waider.ie/hacks/workshop/c/mple/FILE_FORMAT_v2.txt]. The format is known to carry MP3 and ATRAC3 audio. The metadata format is a variant of ID3v2 and uses standard ID3v2 frame types, such as TIT2, TPE1, TALB and TCON. In addition to these standard frame types, TXXX and GEOB frames contain OpenMG-specific metadata. | ||
Revision as of 11:41, 10 April 2007
- Extension: oma, omg
- Company: Sony
Container format used to encapsulate ATRAC3 and ATRAC3+ for use with Sony's portable players. Files ending with .omg are protected with the OpenMG DRM system.
The OMA file format contains a payload scrambled with a 32-bit value [1]. The format is known to carry MP3 and ATRAC3 audio. The metadata format is a variant of ID3v2 and uses standard ID3v2 frame types, such as TIT2, TPE1, TALB and TCON. In addition to these standard frame types, TXXX and GEOB frames contain OpenMG-specific metadata.
TXX OMG_TRACK "track number (ASCII)"
TXX OMG_AGENR "content description (ASCII)"
TXX OMG_ATPE1 "leader performer (ASCII)"
GEOB OMG_BLKSI contains a metadata structure. observed strings include:
KEYRING
EKB
SHARE_P_SID
REFID
GEOB OMG_OLINF binary blob