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HD DVD Stands for High Definition Digital Versatile Disc Terminology | Dictionary | Explanation The HD DVD is a next-generation optical disc format meant for high definition video (HD) and high density data storage, and is one of two competing standards for HD optical media. Its competitor is Blu-Ray. D-DVD is similar to the competing Blu-ray Disc, which also uses the same CD sized (120 mm diameter) optical data storage media and 405 nm wavelength blue laser. A HDDVD can hold up to 15GB, a dual layer can hold up to 30 GB. As opposite to Blu-ray and DVD, there is no region coding in the existing HD DVD specification, which means that titles from any country can be played in players in any other country. The video is encoded with MPEG-2, MPEG-4 AVC (H.264), or VC-1. The HD DVD disc format uses AACS (Advanced Access Content System) for protection. HD DVD is supported by Toshiba, NEC, Sanyo, and Memory-Tech. Microsoft is also supporting HD DVD in its next version of Windows. HD DVDs use the HDi Interactive Format to allow interactive content to be authored for discs. The first Blu-ray's were released on the 18th of April 2006. These movies were The Last Samurai, Million Dollar Baby, The Phantom of the Opera and Serenity. |
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