Maintain your old Siemens Hipath system

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/

In The News:

Kim Jong Un vows no more nuclear or missile tests
Fri, 20 Apr 2018 23:12:00 +0100
North Korean leader Kim Jong Un says Pyongyang has suspended its nuclear and long-range missile tests, and will shut down its atomic test site.

Grave mistake to think Kim is backing down
Sat, 21 Apr 2018 07:01:00 +0100
Against a backdrop of 2017's escalating tensions and threats of attack, North Korea's announcement that it is suspending all nuclear and missile tests seems a dramatic change of course.

Avicii to Max Martin: How Sweden dominates pop music
Sat, 21 Apr 2018 12:10:00 +0100
You probably didn't know it, but when you're humming to old classics by Britney or new music from Nicki Minaj or Katy Perry, a lot of the time you're actually enjoying the musical composition of talented Swedes.

India bids to bring in death penalty for child rapists
Sat, 21 Apr 2018 11:53:00 +0100
India is set to introduce the death penalty for anyone found guilty of raping girls under the age of 12.

Portman defends awards ceremony decision
Fri, 20 Apr 2018 21:53:00 +0100
Actor Natalie Portman has defended her decision not to attend a Jewish awards ceremony, saying she can be critical of Israel's leadership without boycotting the whole country.



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