Content Protection Technology for DVD-Audio

摘要

DVD is growing into a major storage medium for storing high-quality audiovisual data. Copies of the digital data can be made without difficulty that are exactly the same as the original data. Therefore, the copyright holders of entertainment contents such as movies and music strongly require content protection technology that prevents unauthorized copies from being made when their contents are published.In order to meet this requirement, Content Protection for Prerecorded Media (CPPM) technology has been adopted as a content protection technology for DVD-Audio. CPPM is suitable for both consumer electronic equipment and PC system implementations.