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Physical differences between HD DVD and DVD media

Discussion in 'HD DVD discussion' started by schoenike, Jan 16, 2007.

  1. schoenike

    schoenike Member

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    Are there any physical differences between burnable HD DVDs and DVD-Rs? If not could a HD DVD burner be tricked into using its blue laser on a DVD-R to store 15 GB of data on a 4.7 GB disc. It would sure be an economical way to store large amounts of data.
     
  2. eatsushi

    eatsushi Regular member

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    I think both have the data layer 0.6 mm from the surface so theoretically...

    However, I wouldn't trust any important data to this.
     
  3. JoeRyan

    JoeRyan Active member

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    Although the physical construction is the same (two sandwich layers), the dye is very different and so is the recording method and directory structure. The 405 nanometer near ultra violet recording laser will not be able to record properly on dye tuned to the 650 nanometers of ruby red laser power. Even if it could, it would have to follow the wobble tracking groove of the DVD.
     
  4. BurningAs

    BurningAs Regular member

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    dont know if thats true. i think DVD media is 1mm+
     
  5. error5

    error5 Regular member

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    eatsushi is correct. Both data layers are 0.6 mm below the surface:

    http://en.wikipedia.org/wiki/HD_DVD

    JoeRyan has a point though.
     

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