Hi, is this your first visit to MuscleMecca?
  • The Facebook Platform
Results 1 to 5 of 5
  1. Back To Top    #1

    fit 300 DVD's on a single disc??


    How to fit 300 DVDs on one disc

    A new optical recording method could pave the way for data discs with 300 times the storage capacity of standard DVDs, Nature journal reports.

    The researchers say this could see a whopping 1.6 terabytes of information fit on a DVD-sized disc.

    They describe their method as "five-dimensional" optical recording and say it could be commercialised.

    The technique employs nanometre-scale particles of gold as a recording medium.

    Researchers at Swinburne University of Technology in Australia have exploited the particular properties of these gold "nano-rods" by manipulating the light pointed at them.

    The team members described what they did as adding two "dimensions" to the three spatial dimensions that discs already have.

    They say they were able to introduce a spectral - or colour - dimension and a polarisation dimension.

    The scientists used the nanoparticles to record information in a range of different colour wavelengths on the same physical disc location. This is a major improvement over traditional DVDs, which are recorded in a single colour wavelength with a laser.

    Also, the amount of incoming laser light absorbed by the nanoparticles depends on its polarisation. This allowed the researchers to record different layers of information at different angles.

    The researchers thus refer to the approach as 5-D recording. Previous research has demonstrated recording techniques based on colour or polarisation. But this is the first work that shows the integration of both. As a result, the scientists say they have achieved unprecedented data density.
    It's not just elegant - there are a lot of experiments that are elegant - it's relatively straightforward
    Tom Milster University of Arizona

    Their approach used 10-layer stacks composed of thin glass plates as the recording medium. If scaled up to a DVD-sized disk, the team would be able to record 1.6 terabytes - that is, 1,600 gigabytes - or over 300 times the quantity stored on a standard DVD.

    Significant improvements could be made by thinning the spacer layers and using more than two polarisation angles - pushing the limits to 10 terabytes per disc and beyond, the researchers say.

    Bit by bit

    Recent efforts based on holography have shown that up to 500 Gb could potentially be stored on standard DVD-sized disks.

    Holographic methods take all of the information to be recorded and encode it in the form of a graph showing how often certain frequencies arise in it.

    That means that the recording process is a complex, all-at-once, all-or-nothing approach that would be difficult to implement on an industrial scale.

    By contrast, 5-D recording is "bit-by-bit", like current CD and DVD writing processes in that each piece of information is recorded sequentially.

    That is likely to mean that recording and read speeds would be comparatively slow, but the approach would be easier to integrate with existing technology.

    "The optical system to record and read 5-D is very similar to the current DVD system," says James Chon, a co-author on the research.

    "Therefore the industrial scale production of the compact system is possible."

    Now that the method has been demonstrated in custom-made multi-layer stacks, the team is working in conjunction with Samsung to develop a drive that can record and read onto a DVD-sized disc.

    Dr Chon says that the material cost of a disc would be less than five cents (0.03), but there are a number of advantages in moving to silver nano-rods that would bring that cost down by a factor of 100.

    For optical data storage expert Tom Milster, at the University of Arizona, the beauty of the approach is in its simplicity.

    "It's not just elegant - there are a lot of experiments that are elegant - it's relatively straightforward," he told BBC News.

    For the moment, the equipment needed to write the data would make a commercial system expensive, but that has not stopped the development of optical storage solutions in the past.

    "For example, Blu-ray player is not a real easy system to realise; they've got some wonderful optics in there," Dr Milster said. "People thought that would be pretty difficult to do but others managed to do it."
    Story from BBC NEWS:

    •   Post Icon
      MuscleMecca Sponsors

      MuscleMecca Body building advertising
      Your Body building,
      Diet, Nutrition and Fitness,
      Muscle Building Community


        Support Muscle Mecca and Visit Our Sponsors

  2. Back To Top    #2
    Mecca V.I.P. Chesticles's Avatar
    Join Date
    Jul 2006
    Interesting stuff. It'd be a serious money saver in the long run if they actually bring these out.

    Kinda puts a damper on my DVD collection though.

    “Unless a man undertakes more
    than he possibly can do, he will
    never do all that he can.”

    - Henry Drummond

  3. Back To Top    #3
    Join Date
    Jun 2006
    What if the disc gets a scratch? You'd be screwed. I'd rather have a max of 2 movies per disc. Also, the burning 1.6tb onto a disc would take days and even if the right speed was 100x, I still wouldn't burn at that speed. Too unreliable.

    Just get an extra HDD if you want something to store all your movies in one place.

    Please visit our forum sponsors

  4. Back To Top    #4
    Mecca V.I.P. Hypocrisy86's Avatar
    Join Date
    Jul 2006
    San Antonio, Texas, United States
    way old news to me

    bout' two years ago i saw endian.net with a rumor on the holographic discs, supposedly by next year or Q11 they can git 3.0tb's on one disc.

    fit 300 DVD's on a single disc??

  5. Back To Top    #5
    Mecca V.I.P. Zigurd's Avatar
    Join Date
    Sep 2007
    Tech advances way to fast these days.



Similar Bodybuilding Threads

  1. New Pearl Jam Single
    By DCuts85 in forum Movies, Games, TV and Music
    Replies: 5
    Last Post: 08-21-2009, 09:30 PM
  2. Charles Glass: Weight Training 3 disc set
    By DriDDeRz in forum MuscleMecca HeadQuarters
    Replies: 0
    Last Post: 02-13-2009, 03:37 AM
  3. New Metallica Single Released
    By tim290280 in forum Off-Topic Discussion
    Replies: 20
    Last Post: 08-27-2008, 11:37 PM

Tags for this Thread

collapse Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
By agreeing to the above you are also agreeing to our Terms of Use and our Privacy Statement.