In the mid 1990s, commercial high definition TV (HDTV) sets began entering a larger market. Since there was no cheap way to record or play back more demanding HD content (4x+), and a non-HD movie already takes up the storage of a single DVD, a new media format was needed. Blue lasers with shorter wavelengths for HD DVDs yield optical storage with higher density than red lasers for DVDs (0.62x for wavelength ratio). As a result, two new competing media were created: HD-DVDs (spearheaded by Toshiba) and Blu-Ray DVDs (led by Sony). However, within the past two years, Warner Bros, Best Buy, Wal-Mart and others stalwarts announced they would no longer support HD-DVD format, but join the Blu-Ray camp. In February of 2008, after losing US$ 1 billion, Toshiba announced its decision to discontinue development and marketing of the HD DVDs. Thus, the backers and followers of Blu-Ray technology won the HD "format war".
read more at http://www.datadisc.comFriday, February 1, 2008
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