The Blu-ray Disc physical specifications were finished in 2004.[11] In January 2005, TDK announced that they had developed a hard coating polymer for Blu-ray Discs.[12] The cartridges, no longer necessary, were scrapped. The BD-ROM specifications were finalized in early 2006.[13] AACS LA, a consortium founded in 2004,[14] had been developing the DRM platform that could be used to securely distribute movies to consumers. However, the final AACS standard was delayed,[15] and then delayed again when an important member of the Blu-ray Disc group voiced concerns.[16] At the request of the initial hardware manufacturers, including Toshiba, Pioneer and Samsung, an interim standard was published which did not include some features, like managed copy.[17]
Launch and Sales developments
The first BD-ROM players were shipped in the middle of June 2006, though HD DVD players beat them in the race to the market by a few months.[18][19]
The first Blu-ray Disc titles were released on June 20, 2006. The earliest releases used MPEG-2 video compression, the same method used on DVDs. The first releases using the newer VC-1 and AVC codecs were introduced in September 2006.[20] The first movies using dual layer discs (50 GB) were introduced in October 2006.[21]
The first mass-market Blu-ray Disc rewritable drive for the PC was the BWU-100A, released by Sony on July 18, 2006. It recorded both single and dual layer BD-R as well as BD-RE discs and had a suggested retail price of US$699.
http://en.wikipedia.org/wiki/Blu-ray
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