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High Density CDs

Posted by michael on from the totally-incompatible dept.

goofrider writes "Sanyo introduced a new format called HD-Burn, supported by their new DVD+/-RW chip. It allows the drive to burn up 1.4GB of data using a regular 700MB blank CD-R blank. The resulting HD-Burned CD-R can only be read by supporting DVD/DVD-ROM drives and CD-ROM drives. Most DVD/DVD-ROM drives can support the format via a firmware upgrade. It's unclear how easy and how likely will it be for future drives to support this format. In contrast, Plextor released their new GigaRec technology in their new PlexWriter Premium (read a review here). GigaRec also records on regular blank CD-Rs, allows up to 1GB of data on a 700MB disc. however, the disc can be read on any modern good-quality CD-ROM drives with no firmware upgrades required. So now I can record 2x the data on a CD-R but I still can't have filenames longer than 64 characters. :)"

19 of 362 comments (clear)

  1. When do we start punching holes in them? by wowbagger · · Score: 5, Funny

    So, history repeats itself again - higher density on older media.

    When do we start punching holes in them and flipping them over?

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    1. Re:When do we start punching holes in them? by L.+VeGas · · Score: 3, Funny

      I remember punching holes in floppys with my Dad. Man, those were the days...

      Yeah, so do I. Except we called it "choking the chicken".

      --
      Best Windows Freeware
  2. You can have filenames as long as you like by 91degrees · · Score: 2, Funny

    You just have to create your own CD filesystem, and cope with the fact that it's incompatible with all other CDs in the world

    1. Re:You can have filenames as long as you like by 2short · · Score: 4, Funny

      Because people want to name files what they want to name them, and not think about the filesystem.

      True story:
      Back in my days of tech support for DOS-based academics, I was trying to help a user recover some files after a crash. The file naming scheme seemed really weird, so I asked her about it. She explained she was really frustrated by only getting 8 + 3 charachters for a filename, and then she discovered you could make filenames as long as you wanted, you just had to put a back-slash afer every eight charachters. I did not attempt to explain directories.

    2. Re:You can have filenames as long as you like by anethema · · Score: 2, Funny

      Maybe ray stevens should have thought of that before giving his song such a retardedly long name.

      --


      It's easier to fight for one's principles than to live up to them.
  3. I still can't have filenames longer than 64 charac by Anonymous Coward · · Score: 5, Funny

    That's okay. Here on Slashdot, you can't have subjects longer than 50 characters (as you can see above).

  4. Get a Mac by BWJones · · Score: 3, Funny

    So now I can record 2x the data on a CD-R but I still can't have filenames longer than 64 characters. :)

    Why not? Don't you have a Macintosh? :-)

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    1. Re:Get a Mac by daves · · Score: 2, Funny

      So now I can record 2x the data on a CD-R but I still can't have filenames longer than 64 characters. :)

      - Why not? Don't you have a Macintosh? :-)

      Remember that you can put some of the information inside the file.

      --
      People who disagree with you are not automatically evil, greedy, or stupid.
  5. Bah, I developed this myself.... by mblase · · Score: 4, Funny

    It allows the drive to burn up 1.4GB of data using a regular 700MB blank CD-R blank.

    I rewrote my drivers some time ago to provide exactly this level of performance, through the simple but clever technique of only writing 1's to the CD and skipping all the 0's, which the CD drive never reads anyhow.

    Well, okay, I rewrote the "write" portion of the code. The "read" portion is still giving me trouble, but I'm confident it's just a matter of time.

    1. Re:Bah, I developed this myself.... by TeknoHog · · Score: 5, Funny

      You should now notice that the CD only contains ones, which means huge redundancy. You can do a lossless compression of these ones into a single 4-byte number, which only tells the number of ones. It doesn't make the read portion any harder, but you'll save a lot of space.

      --
      Escher was the first MC and Giger invented the HR department.
    2. Re:Bah, I developed this myself.... by Surak · · Score: 2, Funny

      Heck, 4-byte number telling the number of 1s, you could write a SECOND 4-byte number telling the number of 0s. Then all you'd have to do with the READ code is figure out what order they go in. Piece of cake.

      --
      My journal has hot /. gossip.
    3. Re:Bah, I developed this myself.... by mikeee · · Score: 3, Funny

      You'll save even more space if you replace the "1"s with the letter "l", which is slightly smaller. Also, consider decreasing font size, and possibly going to italic to pack them more tightly.

  6. 64 by Duncan3 · · Score: 4, Funny

    ThisIsA64CharacterFilenameBoyIsItLongImSureDespera teToUse65.txt

    Yea, i'm worried :)

    --
    - Adam L. Beberg - The Cosm Project - http://www.mithral.com/
  7. Ah, excellent! by Blondie-Wan · · Score: 2, Funny

    Our top scientists are working overtime to outpace the expansion of bloatware. This bold advance should help defer the need to ship everything on multiple CDs for at least another six months! :)

  8. Jeez by Beatbyte · · Score: 5, Funny

    but I still can't have filenames longer than 64 characters...

    Yes its such a bitch to pay 20 cents for a CD-R and not be able to name your backups 'thursdayaprilthirtyfirsttwothousandthreeelevenfif teenandthirteenseconds.tar.gz'
    'thursdayaprilthir tyfirsttwothousandthreeelevenfif teenandfourteenseconds.tar.gz'

    --
    Get paid to code OSS
  9. 64 Characters !?! by Anonymous Coward · · Score: 5, Funny

    64 characters eh? Back in my day we only had eight. And we didn't have any of your fancy pants lower case letters to fool around with either....Bah!

  10. Re:Recursive compression by cyber_rigger · · Score: 3, Funny

    Couldn't you use the "1 only" write technology
    to further compress the 32 4-byte number(32 bits)?

    It would then only take 5 bits.

    You could then just memorize the number and you wouldn't need a CD at all.

  11. Re:Need more than 64 characters, try this... by Kredal · · Score: 2, Funny

    Be sure to keep your Romeo mode and Juliet mode disks close together, or both will suddenly stop working.

    --
    Whoever stated that signature sizes should be limited to one hundred and twenty characters can just go ahead and kiss my
  12. you must really suck by Anonymous Coward · · Score: 1, Funny

    After reading you parent post, and now this one, I have concluded that you know absolutely nothing about computers.

    On a k6-2 350, with a voodoo3 video card and 128M RAM, running Redhat 8.0 I have never only seen the windows being drawn when I am running a ton of stuff. On a 2000+ with a gf3ti200 or radeon 9500pro and 512M RAM, running Redhat 9.0 or Mandrake 9.1 I have never seen windows being drawn.

    You really need to learn how to configure your computer.... well, learn to do that after you learn how to shop for cheaper components.