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Appeared on: Thursday, October 9, 2008
AACS Specifications for China Blue High Definition Disc Available

AACS LA has released the
The AACS content protection specifications for the CBHD-ROM is based on those of the HD DVD-ROM also issued by the AACS LA.

The basic AACS components on the CBHD-ROM include control data, Media Key Block (MKB), Volume identifier and a serial number that is pre-recorded on the media. Managed Copy is also included in the specifications.

The CBHD format is backed by China High-definition DVD industry Association (CHDA), the Optical Memory National Engineering Research Center (OMNERC) and the DVD Forum.

The physical format of CBHD includes Chinese-owned intellectual property and it is based on HD DVD.

The list of the supporters of the CBHD format, which is competing with the Chinese version of the Blu-ray format, include Japanese Memory-tech , Shinco, Shanghai United Optical Disc Co., Ltd (UOD), Warner China, OMNERC and others. Toshiba is also holding the licensing groups since it holds the IPs in the Chinese format.

However, it is questionable whether the Hollywood will release content on the CBHD format since the majority of the studios are aligned with the Blu-ray camp.