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The DVD successor will be called Blu-ray Disc

The DVD successor will be called Blu-ray Disc

Today nine companies presented the specifications for the successor to the DVD, the final specification should be available in spring 2002 and then licensing to the manufacturers can begin.

The successor to the DVD presented by Matsushita, Pioneer, Philips, Sony, Thomson, LG Electronics, Sharp and Samsung will have a capacity of 27 GB per side and, as usual, one Disc with a diameter of 12 cm. The data is written and read with a blue-violet laser with a wavelength of 405 nm. The companies want to create a uniform standard for read-only and (re) writable media, which also offers enough capacity for the future HDTV standard. This requires about three times as much storage space and instead of the previous 'DVD-9' the 'DVD-27' would be used. In addition, the bandwidth for Blu-ray is to be increased to 36 Mbit/s, so that up to 13 hours of film in the previous DVD resolution (720x576 pixels PAL) would fit on the new media. Copy protection has also been thought of. A unique identification number should prevent or make copying more difficult.

Blu-ray Disc