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JVC Develops World's First Blu-ray/ DVD Combo ROM Disc Technology - 33.5GB
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Posted on Monday, December 27 2004 @ 20:43:55 CET by Thomas De Maesschalck |
Victor Company of Japan, Ltd. (JVC) is pleased to announce that it has developed the world's first Blu-ray/ DVD combo ROM disc technology, which enables storage of video content in both high definition and standard definition. The new ROM disc, which has a total storage capacity of 33.5GB, uses a triple layer structure made possible by JVC's development of a proprietary, high-performance reflective film.
The new Blu-ray/ DVD combo ROM disc has a one-side readout, triple layer structure comprised of an outside Blu-ray disc (BD) layer and inner DVD dual layer (Fig. 1). The outer BD layer is capable of storing high definition video signals up to a capacity of 25GB. The inner DVD dual layer can store up to 8.5GB of standard definition video signals. During Blu-ray reproduction, blue laser read the outer BD layer, while red laser read the inner DVD dual layer during DVD reproduction.
The triple layer structure was made possible by the development of a high-performance reflective film that reflects blue laser used for Blu-ray reproduction, but is transparent to red laser used in DVD reproduction. The proprietary technology builds upon JVC's past developments in the field of disc processing technology.
The full article can be read at JVC
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