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Pioneer develops 400GB Blue Laser Disc

350°
324w ago - Pioneer has developed an optical disc that can hold up to 400GB of data, easily surpassing previously announced prototypes.

The new disc manages to pack 16 layers, each with a 25GB capacity, into a conventional 12-centimeter diameter optical disc. The new discs are similar to Blu-ray Disc technology and slight changes to the hardware on a Blu-ray drive would allow the new Pioneer discs to be used on one.

Pioneer doesn't have any plans to commercially produce the disc but is looking to work with disc manufacturers that would make it themselves. The technology is about ready to enter commercialization, said Michiko Kadoi, a spokeswoman for Pioneer Corp. in Tokyo.

A one-sided Blu-ray Disc has 25GB of capacity, far less than the Pioneer disc. Currently, dual-layer 50GB discs are the highest capacity discs available commercially. Various companies have worked on higher capacity discs and TDK Corp. previously announced development of a 6-layer disc with 150GB capacity, but that has yet to reach the market.

Getting a clear signal from each recording layer has been a stumbling block for higher capacity discs with more layers, but Pioneer said it has managed to solve this problem by employing technology it developed for DVDs. The new disc has a structure that reduces interference...
 
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