” Toshiba Corp. and Memory-Tech Corp. said their disc has a dual-layered surface that can store both types of data on the same side.
For consumers, that would eliminate the potential headache of having to own two types of DVD players: Both will be able to read such discs, though only the newer equipment can take advantage of the higher-resolution technology.
The discs, which took six months to develop, will be able to hold 4.7 GB in the current format and 15 GB in high resolution, Memory-Tech spokesman Masato Otsuka said. “
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Found VIA Engadget