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Technology
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2006-09-19 10:41:22-04
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Warner Brother's develops triple standard HD DVD, Blu-ray, DVD
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London, Sept 19: Close to the heel of Toshiba's proposed double standard disc comes news of Warner Brother's engineers having applied for a patent on a triple-standard disk. The engineers Alan Bell and Lewis Ostrover have been working on a way to get all three formats (HD DVD, Blu-ray and DVD)on a single disc. HD-DVD and Blu-Ray on one side and standard DVD on the other. This has been made possible by the fact that Blu-ray uses a 405-nanometre wavelength laser to read data from tracks 0.1-millimetres-deep on the top surface of a disc while HD-DVD, on the other hand, uses the same wavelength to read recordings at a depth of 0.6 mm. The hybrid disc works by making the Blu-ray layer act like a two way mirror, reflecting enough light for Blu-ray playback, but letting enough light through for HD DVD operation. An ordinary DVD recording could be put on the other side, so that conventional DVD players can read the disc as well. Although the triple-standard disc will cost more to make, it should still be cheaper than pressing three, reports New Scientist. On 26 September, Warner will be the first studio to release a movie, Lake House, on all three disc standards simultaneously.
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