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2. Comparison of high-definition optical disc formats - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_high...

   The new discs were to overlay the Blu-ray and HD DVD layers, placing them respectively 0.1 millimetres (100 μm) and 0.5 millimetres (500 μm) beneath the surface. The Blu-ray top layer would act as a two-way mirror, reflecting just enough light for a Blu-ray reader to read and an HD DVD player to ignore. [18]

3. High-definition optical disc format war - Wikipedia

   en.wikipedia.org/wiki/High-definition_optical...

   At the time of the report, upconverting DVD players cost around $70 versus $300 for Blu-ray players. [75] But in spring 2009, the number of Blu-ray players nearly doubled its year to date 2009 sales over the same period 2008: about 9 million high-definition units sold in the U.S. from January through March, up from the 4.8 million that sold ...

4. Blu-ray - Wikipedia

   en.wikipedia.org/wiki/Blu-Ray

   HD DVD had a head start in the high-definition video market, as Blu-ray Disc sales were slow to gain market share. The first Blu-ray Disc player was perceived as expensive and buggy, and there were few titles available. [48] The Sony PlayStation 3, which contained a Blu-ray Disc player for primary storage, helped support Blu-ray. [49]

5. Comparison of popular optical data-storage systems - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_popular...

   DVD-RAM rewriteable, capable of random write access, not generally format-compatible with DVD; Blu-ray Disc: DVD successor, capable of high-definition video [1] BD-R: WORM Blu-ray Disc by the Blu-ray Disc Association; BD-RE: rewriteable BD; HD DVD: failed HD format defined by the DVD Forum [2] Ultra HD Blu-ray: BD successor, capable of 4K ...

6. HD DVD - Wikipedia

   en.wikipedia.org/wiki/HD_DVD

   HD DVD/Blu-ray combo player 1080p BD-UP5500 Samsung: HD DVD/Blu-ray combo player Cancelled 1080p Computer peripherals. Internal drives. Name Make Type Date of release ...

7. Optical storage media writing and reading speed - Wikipedia

   en.wikipedia.org/wiki/Optical_storage_media...

   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×.