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An Introduction to HD-DVD

High density digital versatile disc is a digital optical media format which is being developed. HD DVD is similar to the competing Blu-ray Disc. It is currently in a format war with the Blu ray disc proposed by the Blu ray disc association.

HD DVD has a single layer capacity of 15GB and a double layer capacity of 30GB. The surface layer is 0.6mm thick which is the same thickness of surface layer as standard DVDs.

HD DVD media is less expensive to manufacture than Blu ray discs which require re-tooling of DVD production lines. Another advantage over Blu ray is the common disc structure with DVDs which therefore allows for full backwards compatibility of HD DVD drives which will be able to play both DVDs and CDs. However it is now likely that Blu ray drives will be backwards compatible with DVDs.

HD DVD provides the large capacity storage needed for all sorts of recorded content, including high definition movies and music as well as computer data and files.

There are two kinds of of HD DVD discs for content, the 15GB single layer disc and the dual-layer disc with double capacity, a full 30GB. Using the latest compression technologies, the 30Bg disc can store up to 7 hours of images. Today' DVD has a capacity of 4.7GB and store only 2 hours of standard definition content.

HD DVD discs have a data transfer rate of 36.55Mbps which allows the 24Mbps data stream of digital television broadcasts to be seamlessly recorded.

Using HD DVD in the every day world will have numerous advantage over other optical media technologies. The resilient HD DVD disc has a protective layer which removes the need for a protective cartridge, allowing the development of slim computer drives. The added bulk of a disc cartridge would have also caused any laptops using a cartridge based optical media disc to increase substantially in size to allow for the extra room the drive would need.

Chuck Red runs website on both Blu ray http://www.blueray-media.co.uk and HD DVD formats http://www.hddvd-media.co.uk/

MORE RESOURCES:

Yahoo! News Search Results for hardware
Yahoo! News Search Results for hardware

• DEACOM ERP Software To Integrate Building Component, Lumber And Hardware Busi...
Deacom, Inc. today announced Allensville Planing Mill, Inc. will implement the DEACOM Integrated Accounting and Enterprise Resource Planning (ERP) Software System to manage its truss and wall panel manufacturing business and lumber and hardware stores.
• Rich Forbes, Home & Hardware Unit Leader at Fortune Brands, to Retire (Buildi...
DEERFIELD, IL -- Rich Forbes, president and chief executive officer of Fortune Brands Home & Hardware, announced that he plans to retire at the end of 2009. Effective April 1, 2009, Christopher J. Klein, currently senior vice president - strategy and corporate development of Fortune Brands, will become president and chief operating officer - home products, and report to Forbes.
• Dell hopes business realignment, new offerings help it go beyond commercial h...
Dell Inc. likes the consumer market just fine, thank you, but it sure didn't waste any time shifting the focus from holiday shopping to commercial technology.
• Indian navy agrees to $2.1B deal for Boeing planes (AP via Yahoo! Finance)
The Indian navy has agreed to buy eight reconnaissance and anti-submarine planes from Boeing Co. in a $2.1 billion deal that signals the developing nation's drive to upgrade its military hardware.
• New Apple Mac Mini Hardware To Be Supported By Revolutionary SeeFile Web Shar...
Announcement at MacWorld SanFrancisco - Bundles available to include SeeFile 4.6 software and new Mac hardware; Web hosted version to offer affordable monthly startup (PRWeb Jan 5, 2009) Read the full story at http://www.prweb.com/releases/macworld/DAM/prweb1824054.htm

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