High definition DVD, also known as HD-DVD (which actually stands for High Density DVD), is one of two competing high definition storage formats - the other being Blu-ray (http://www.the-hdtv-tuner.com). The need for a new, high capacity storage format, has been primarily brought about by the rapid rise in popularity of HDTV in Japan and the US. HDTV has much higher bandwidth than either NTSC or regular DVD discs, so in order to record programs from HD-DVD higher capacity discs, of at least 30GB, are required.
High definition video is also being used increasingly to make Hollywood movies as it offers comparable quality to film at much less cost. Therefore, the studios plan to release future movies on one or both high definition formats.1.Quicker access to saved data via the LAN.DVD�s are also smaller to store - an important consideration if your storage space is limited - and are way more convenient. By that I mean you can jump from �chapter� to �chapter� or segment to segment with the click of your remote, eliminating all that fast forwarding and rewinding that�s necessary with a VHS tape. The amount of data you can cram onto a DVD is vastly superior to what can be included on a VHS tape - which is one reason you can see a movie, plus all those cool special features like cast interviews and how they made the movie and how they did the stunts - all of that can be included on a single DVD.
High definition DVD currently supports a number of compression formats, including MPEG-2, VC1 (based on Microsoft�s Windows Media 9), and H.264 which is based on MPEG-4 and will be supported by the next version of Apple�s QuickTime software, which will be included with Mac OS X Tiger.
Author: Kenny Hemphill
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