BluRay Discs

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Blu-Ray Discs

• Kevin LewiShi Hyun AhnRyan PellicoMin Jung Kim

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• Blu-ray Disc (also known as Blu-ray or BD) is an
  optical disc storage medium. Its main uses are
  high-definition video and data storage. The disc
  has the same physical dimensions as standard DVDs
  and CDs.

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• The name Blu-ray Disc is derived from the blue
  laser (violet-colored) used to read and write
  this type of disc. Because of the wavelength (405
  nanometres), substantially more data can be
  stored on a Blu-ray Disc than on the DVD format,
  which uses a red (650 nm) laser. A two-layer
  Blu-ray Disc can store 50 gigabytes, almost six
  times the capacity of a two-layer DVD, or ten and
  a half times that of a single-layer DVD.

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• During the format war over high-definition
  optical discs, Blu-ray Disc competed with the HD
  DVD format. On February 19, 2008, Toshibathe
  main company supporting HD DVDannounced that it
  would no longer develop, manufacture, or market
  HD DVD players and recorders,2 leading almost
  all other HD DVD companies to follow suit,
  effectively ending the format war.

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• Blu-ray Disc was developed by the Blu-ray Disc
  Association, a group representing makers of
  consumer electronics, computer hardware, and
  motion pictures. As of December 21, 2008, more
  than 890 Blu-ray disc titles are available in
  Australia, more than 720 Blu-ray Disc titles are
  available in Japan, more than 1,140 Blu-ray Disc
  titles are available in the United Kingdom, and
  more than 1,220 Blu-ray Disc titles are available
  in the United States.345