Disc Description Protocol
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Disc Description Protocol (DDP) is a format for specifying the content of optical discs, including CDs and DVDs.
DDP is commonly used for delivery of disc premasters for duplication. DDP is a proprietary format and is the property of DCA. The file format specification is not freely available.
The DDP must contain 4 parts[1]:
- Audio image(s) (.DAT file(s))
- DDPID (DDP Identifier)
- DDPMS (DDP Stream descriptor)
- PQDESCR (Subcode descriptor)
An optional text file can also be included, this will contain the track titles and timings.
References
- ^ Francis Rumsey, Desktop Audio Technology, 2004, Focal Press