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Japanese Researchers Discover Way To Squeeze 42 GB Onto A DVD

By - Source: Tom's Hardware | B 16 comments

A team of Japanese researchers have discovered a way to store 42 GB of data on one disc. Well, at least that’s what they claim.

When DVDs first came onto the scene, able to store roughly six times the amount of data that a CD could, it seemed like a pretty cool discovery. CDs and DVDs both have pits (really slight impressions) on the surface of the disc. The pits on DVDs are smaller and aside from that, the space between the pits, the track-spacing, is a lot tighter. DVDs can also have up to 4 layers of information, with 2 layers on either side. All of this means that DVDs can store more a lot data than CDs.

Now a team of researchers at the Tohoku University have discovered a new way of storing the data on a DVD, which enables us to store what amounts to nearly nine discs of data on just one. They say a V-shaped pit can hold as much data as 2^9 flat pits, which means there’s the potential for a disc that can store up to 42 GB of data.

According to CrunchGear the format has two major drawbacks. First of all, the researchers say it cannot be applied to Blu-ray discs, also, the discs are not compatible with regular DVD drives. Given these factors, it’s likely they won’t ever see maintstream production.

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Via CrunchGear

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  • 3 Hide
    1971Rhino , June 27, 2008 8:37 PM
    Well thanks for nothing!
  • 1 Hide
    falchard , June 27, 2008 8:55 PM
    Sounds like a multi-million investment from Toshiba is in order.
  • 0 Hide
    KyleSTL , June 27, 2008 9:35 PM
    Sounds like a multi-million investment from Toshiba is in order.

    Followed months later by a multi-billion dollar loss and abandonment of researched technology.
  • Display all 16 comments.
  • 0 Hide
    yadge , June 27, 2008 11:26 PM
    It seems like they could have thought of this earlier when it actually would have been useful. I mean, I don't know that much about it, but I would think they would try to get as much out of the DVD as soon as possible, and this advancement doesn't really seem like it would have taken that long to figure out.
  • 0 Hide
    habs2009 , June 27, 2008 11:58 PM
    Leave it to the Japanese to take something and make it better :) 
  • 0 Hide
    JonathanDeane , June 28, 2008 12:16 AM
    I wonder why they just do not refine the technology and use it for holographic storage disks.... supposedly those can already store close to 1 TB... (unless the tech is made obsolete by HG storage)
  • 0 Hide
    Darkk , June 28, 2008 1:01 AM
    When Thomas Edison was busy trying to invent the light bulb he came up with the vacuum tube which didn't work as a light bulb but was later discovered to have a different purpose.

    Still, it's a cool discovery by the Japanese researchers and maybe someday it'll have a purpose.

  • -2 Hide
    scooterlibby , June 28, 2008 1:20 AM
    "pits(really slight impressions) on the surface of the dics"

    I had that on my dic once, burned like fire! Hey I'll proofread for you Tom's!
  • 0 Hide
    Neog2 , June 28, 2008 10:14 AM
    Toshiba isnt hurting for cash considering they own the majority stake
    of Samsungs DVD buisness wich includes Blu-Ray.
    Its a win, win for them either ways. One way would have just gave them
    more profits.

    Plus they are making tons off of pantents for DVD's.
  • 0 Hide
    klarkmdb , June 28, 2008 10:20 AM
    If they put more R&D on this one. It would be worth the expense after they prove the technology is working.
  • -1 Hide
    pogsnet , June 28, 2008 2:55 PM
    HD DVD died... so is this. If that technology is ten times better than blu-ray perhaps that would kill it.
  • 0 Hide
    doomsdaydave11 , June 28, 2008 11:46 PM
    habs2009Leave it to the Japanese to take something and make it better

    Are you japanese?
    Us stinking Americans can do stuff too :p 

    Pretty cool, but like Yadge said, it would have been more useful if it came out earlier.
  • 0 Hide
    johnbilicki , June 30, 2008 8:28 AM
    Where the hell are the DVD+QL then?!?! >__>

    1971RhinoWell thanks for nothing!

    I like reading comments for the lulz! :D 
  • 0 Hide
    seatrotter , June 30, 2008 1:46 PM
    How about the susceptability to scratch?

    I think the tech industry should try another take on flourescing dyes. I know, there already is Fluorescent Multilayer Disc. Unfortunately, its been hoarded up to be inaccessible to consumers. It's just such a waste given its benefits:
    - can hold terabytes of data
    - very resistant to scratches
    - already rewritable when first developed.

    Sigh. The things we could have had :( 
  • 0 Hide
    Aurora18 , July 8, 2008 1:30 PM
    this development in japan seems similar to their md3grape where it was incompatible with current software/hardware
  • 0 Hide
    DFGum , November 7, 2008 8:19 AM
    So this cant be applied to blu-ray but what about HDDVD? Wouldn't that be for a odd revival.