CPPM is only for DVD-Audio. Key is placed in the lead in area, but there is no title key in the sector head. Disc key is replaced by "album identifier". The identification solutions are the same for both program and CSS, so the existing equipment will not have any modifications. Disc can contain both CSS and CPPM content.
Copy protection also includes ACPS, CGMS, and DCPS and so on.

Common problems related to partition recovery and our solutions: