zip 250mb app

Discussion in 'MacBook Pro' started by bob5731, Mar 15, 2015.

  1. bob5731 macrumors regular

    Jun 27, 2008
    I need to backup some files to a zip 250mb drive on 10.10.3?
    How I do it? The files size is 57GB.
    What app do I need to use?
  2. yjchua95 macrumors 604

    Apr 23, 2011
    GVA, KUL, MEL (current), ZQN
    You can't.

    Compressing 57GB into 250MB is impossible.
  3. webs1 macrumors member

    Aug 14, 2008
    You would need a program like iPackr which can compress and split the file into 250mb sections. Keep in mind that you'll need about 228 ZIP disks . . .
  4. bob5731, Mar 15, 2015
    Last edited: Mar 15, 2015

    bob5731 thread starter macrumors regular

    Jun 27, 2008
  5. Gwendolini macrumors 6502


    Feb 5, 2015
    Why use ZIP disks at all? The amount of disks you need is too expensive and too time consuming to be economically feasible.
    1 GB (four 250 MB disks) cost around 35 USD, that is 2,000 USD for the 57 GB.
    There are USB sticks cheaper than that with 64 GB capacity (for 35 to 60 USD) or 1 TB HDDs in a USB 2.0 or 3.0 case (2.0 would still be faster than 228 disk in and out movements) for 50 to 70 USD.

    Why use this method at all, when a USB 3.0 HDD would be nine times faster and take up only 1/200th of the space?

    Assuming a ZIP disk writes with 20 MB/s, and that is a very favorable assumption, the 57 GB will be written in around 50 minutes, but due to ejecting the disk and inserting the new disk taking up time and space too, assuming that one exchange takes about 10 seconds (unmounting and mounting take some time too) and it is already formatted correctly (FAT32 will be okay), 229 disk exchanges will add another 38 minutes.
    Then you have to label them, but them in boxes to store 9,400 cubic inches, which is the size of a bathtub.
  6. scaredpoet macrumors 604


    Apr 6, 2007
    Adding to the above: NOTHING should be backed up on a Zip disk anyway. They're too unreliable. The media has a design flaw that will pretty much guarantee that it will fail. If you're lucky enough to still own a working Zip drive that doesn't destroy every Zip Disk it touches, you should be moving your data OFF Zip disks, not the other way around.

    For 57GB of data, it'll be much safer and easier to buy one of these for under $20.

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5 March 15, 2015