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Toshiba HD DVD 51GB Disc Unveiled

Extended capacity disc can store up to 7 hours1 of high definition content

Toshiba Corporation underlined the versatility and high capacity of the HD DVD format with the announcement that the company has developed a triple-layer HD DVD-ROM (read only) disc with a capacity of 51 gigabytes. The new disc can store up to 7 hours1 of high-definition video and adds an extended capacity, high-end option to the already extensive line-up of HD DVD-ROM discs. Toshiba aims to secure approval of the new disc by the DVD Forum within this year.

The new ROM disc has a three-layer structure, with each layer storing 17GB of data. The advances capacity over current ROM discs, which hold 15GB of data in each layer of a single-sided disc. Continued improvement in disc mastering technology has achieved further minimization in the recording pit, supporting a further boost in capacity to 17GB in single layer and a full 51GB on a single-sided triple-layer disc. Toshiba has confirmed the disc structure and its successful operation.

The new disc shares the same disc structure as standard DVD and previously announced HD DVD formats: two 0.6-mm thick discs bonded back-to-back. This time-tested physical structure offers proven volume manufacturing at little cost increment.

Toshiba featured the new disc at the International Consumer Electronics Show (CES) 2007, in Las Vegas, Nevada from January 8 to 11, at the Toshiba booth.

*1 Recording capacity at a sampling rate of 17 mbps.

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