China Blue High-definition Disc: Difference between revisions
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'''CH-DVD''' (China High Definition DVD) is a high definition DVD format announced in September 2007 by the Optical Memory National Engineering Research Center (OMNERC) of [[Tsinghua University]] in [[China]] |
'''CH-DVD''' (China High Definition DVD) is a high definition DVD format announced in September 2007 by the Optical Memory National Engineering Research Center (OMNERC) of [[Tsinghua University]] in [[China]]. |
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The format is based on some of the technology that forms [[HD DVD]], however, the two formats would remain incomaptible without updates for the machines. CH-DVD is uses a different form of [[Modulation#Digital_modulation_methods|digital modulation]] to store the data on the disc. <ref name=zdnet>[http://stor-age.zdnet.com.cn/stor-age/2007/0907/495410.shtml High-definition discs Industry Alliance of China officially established its debut CH-DVD], ZDnet China, September 7, 2007</ref>. The copy protection mechanism to be used has not yet been announced. CH-DVD will not support HD DVD's Advanced Content (interactive applications). The CH-DVD format uses the [[Audio Video Standard|AVS]] audio and video [[codec]], owned by the Chinese government. CH-DVD's developers claim the format contains more copy protection features and is part of a big push by China to fight piracy as well as cut down on royalty payments for foreign patents.<ref name=zdnet/> |
The format is based on some of the technology that forms [[HD DVD]], however, the two formats would remain incomaptible without updates for the machines. CH-DVD is uses a different form of [[Modulation#Digital_modulation_methods|digital modulation]] to store the data on the disc. <ref name=zdnet>[http://stor-age.zdnet.com.cn/stor-age/2007/0907/495410.shtml High-definition discs Industry Alliance of China officially established its debut CH-DVD], ZDnet China, September 7, 2007</ref>. The copy protection mechanism to be used has not yet been announced. CH-DVD will not support HD DVD's Advanced Content (interactive applications). The CH-DVD format uses the [[Audio Video Standard|AVS]] audio and video [[codec]], owned by the Chinese government. CH-DVD's developers claim the format contains more copy protection features and is part of a big push by China to fight piracy as well as cut down on royalty payments for foreign patents.<ref name=zdnet/> |
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Revision as of 03:35, 11 April 2008
CH-DVD (China High Definition DVD) is a high definition DVD format announced in September 2007 by the Optical Memory National Engineering Research Center (OMNERC) of Tsinghua University in China.
The format is based on some of the technology that forms HD DVD, however, the two formats would remain incomaptible without updates for the machines. CH-DVD is uses a different form of digital modulation to store the data on the disc. [1]. The copy protection mechanism to be used has not yet been announced. CH-DVD will not support HD DVD's Advanced Content (interactive applications). The CH-DVD format uses the AVS audio and video codec, owned by the Chinese government. CH-DVD's developers claim the format contains more copy protection features and is part of a big push by China to fight piracy as well as cut down on royalty payments for foreign patents.[1]
See also
- China Video Disc China's proprietary version of DVD on standard CD-ROM
- HD DVD The template format for CH-DVD
- Enhanced Versatile Disc
- Blu-ray Disc Another Blue Laser format
- HVD A Red Laser format using HD content on standard DVD discs.
References
- ^ a b High-definition discs Industry Alliance of China officially established its debut CH-DVD, ZDnet China, September 7, 2007
External links
- High-definition discs Industry Alliance of China officially established its debut CH-DVD, ZDnet China, September 7, 2007
- Business Wire press release
- CH-DVDs
- John C. Dvorak blog
- The Authoritative HD DVD FAQ by Hugh Bennett
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