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Japanese researchers develop a 42GB super DVD
by Serkan Toto on June 26, 2008

A research team from the Institute of Multidisciplinary Research for Advanced Materials of prestigious Tohoku University in Northern Japan announced [JP, PDF] it has found a way to multiply the amount of data that can be stored on a DVD or CD by a factor of 9.

It is claimed the result was achieved by shaping the pits on a DVD’s surface, which are usually flat, like “V”s. The researchers say a V-shaped pit can hold as much data as 2^9 flat pits, making the development of 42GB DVDs possible.

This fascinating technology has two main drawbacks. Firstly, the new super discs cannot be used in existing CD/DVD drives. It is secondly impossible to apply the new technology to Blu-ray discs.

Thanks, Sze!

Comments rss icon

  • Since it isn’t compatible with the dvd players allready on the market it makes no sense using it, the Blu Ray has better capacity and can have multi layers to achieve 200gb.

    And to insert this media on the market is going to be hell hard since blu ray has a big market share on next gen discs.

  • If it took more than 5 minutes to think of this idea, then it was a waste of time! Let alone taking the time to research this useless developement! How much did they spend researching this useless disc? Whatever it is, such a waste of money and time!!! IMHO!

  • Renan if you think about it. This could give BLU-RAY four layer disk more then it could handle now. But the technogey have to be addopted to the blue doil and not the red one.

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  • The factor of nine would appear to be an arbitrary number, since the alignment of pit is an analogue “quantity.” The limit on the capacity is, ultimately, going to be determined by the construction of the read head. So the incremental cost between generations of this technology is going to be a lot lower than forever trying to reduce the wavelength of light used.

  • So what? Renan
    They can probably use the same procedure to blue-rays. That means by a factor of 9!! 50GB * 9 –> YEAH!!!
    Ok, you need a new dvd player or so, but I would buy it.

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