Blue light has a shorter wavelength than red light, and according to the Blu-ray Disc organisation ( BDA ), which is made of, among others, Sony, Philips, Panasonic, and Pioneer, this indicates that the laser spot can be focused with bigger precision. Like HD-DVD, Blue laser discs don't need a caddy and the players and recorders will be in a position to play current DVD discs. Codecs supported by Blu-ray include the H Blu-ray is an optical disc format which is about to rival HD-DVD in the race to be the de-facto standard storage medium for HDTV. The key difference between Blu-ray disc players and recorders and current optical disc technology is that Blu-ray, as its name endorses, uses a blue-violet laser to read and write information instead of a red one. Blue light has a shorter wavelength than red light, and according to the Blu-ray Disc organisation ( BDA ), which is made of, among others, Sony, Philips, Panasonic, and Pioneer, this suggests that the laser spot can be focused with larger precision. 42 hdtv. as with all state-of-the-art technology, costs will swiftly fall - especially as Blu-ray will be contesting with HD-DVD for that space under your Television .
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