Tag Archives: CPPM

Content Protection for Prerecorded Media (CPPM)

Jan 05th, 2010by dvdxplayer 1,940 views |Comments Off

CPPM is used only for DVD-Audio. It was developed as an improvement on CSS. Keys are stored in the lead-in area, but unlike CSS no title keys are placed in the sector headers. Each volume has a 56-bit album identifier, similar to a CSS disc key, stored in the control area. Read More »