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:
An optional text file can also be included, this will contain the track titles and timings.