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Updating firmware on a yamaha bd s2900

On January 4, 2008, a day before CES 2008, Warner Bros.

(the only major studio still releasing movies in both HD DVD and Blu-ray Disc format) announced that it would release only in Blu-ray Disc after May 2008.

In fact, there was no medium with the storage required to accommodate HD codecs, except for JVC's Digital VHS and Sony's HDCAM.

Nevertheless, it was well known that using lasers with shorter wavelengths would enable optical storage with higher density.

Shuji Nakamura invented the practical blue laser diode; it was a sensation among the computer storage-medium community, although a lengthy patent lawsuit delayed commercial introduction.

Sony started two projects applying the new diodes: UDO (Ultra Density Optical), and DVR Blue (together with Pioneer), a format of rewritable discs that would eventually become Blu-ray Disc (more specifically, BD-RE).

In spite of this decision, however, the DVD Forum's Steering Committee announced in April that it was pursuing its own blue-laser high-definition solution.

At CES 2007, Warner proposed Total Hi Def—a hybrid disc containing Blu-ray on one side and HD DVD on the other—but it was never released.

By January 2007, Blu-ray discs had outsold HD DVDs, and during the first three quarters of 2007, BD outsold HD DVDs by about two to one.

derives from the blue-violet laser used to read the disc.

While a standard DVD uses a 650 nanometer red laser, Blu-ray uses a shorter wavelength, a 405 nm blue-violet laser, and allows for almost ten times more data storage than a DVD.


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