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Blu-ray (Blu-ray Disc or BD) is a digital optical disc data storage format designed to supersede the DVD format. It was invented and developed in 2005 and released worldwide on June 20, 2006, capable of storing several hours of high-definition video (HDTV 720p and 1080p).
DVD players cannot play Blu-ray discs due to using different wavelength lasers (Blu-ray discs use a blue-violet laser, hence their name, rather than a red laser). However, Blu-ray players are typically backwards compatible, meaning they will play DVDs. Some are compatible with CD and other disc formats.
Blu-ray and HD DVD players became commercially available starting in 2006. In early 2008, the war ended when several studios and distributors shifted to Blu-ray disc. [1] On February 19, 2008, Toshiba officially announced that it would stop the development of the HD DVD players, conceding the format war to the Blu-ray Disc format. [2]
CVD401A. Now let me say, there's really no reason you shouldn't buy a Blu-ray player here. That Sony model is under $100, you can afford it, and it'll play Blu-ray and regular DVDs.
HD DVD is the only high-def disc format that can decode 1080p25 while Blu-ray and HD DVD can both decode 1080p24 and 1080p30. 1080p25 content can only be presented on Blu-ray as 1080i50. ^ h Linear PCM is the only lossless audio codec that is mandatory for both HD DVD and Blu-ray disc players, only HD DVD players are required to decode two ...
For Blu-ray discs, 1× speed is defined as 36 megabits per second (Mbit/s), which is equal to 4.5 megabytes per second (MB/s). [7] However, as the minimum required data transfer rate for Blu-ray movie discs is 54 Mbit/s, the minimum speed for a Blu-ray drive intended for commercial movie playback should be 2×. The fastest Blu-ray speed is 16×.
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