Help with ISO Image

Discussion in 'Windows Desktop Systems' started by jpom, Jun 29, 2005.

  1. jpom

    jpom OSNN Addict

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    So I have an ISO Image that is 656MB (or something of the sort) and I need to make a change to a text file on the image. I've used UltraISO and winrar to open the image and extract the file. I make my changes, dump the file back into the ISO and then rebuild the Image, but the image becomes 1.5GB. So I extracted the whole ISO image and it goes from 656MB to 1.5GB when extracted. My questions is this, is there a program or some method that I am unaware of compressing this ISO image or building it back into a CD size Image.

    TIA
    James
     
  2. mooo

    mooo thecyberninja

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    make sure you are not added the .iso back to the new file. I don't think compression can be done but i could be wrong.
     
  3. jpom

    jpom OSNN Addict

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    I checked that but the problem is that while the ISO is 656MB if I extract it to a folder then the folder is 1.5GB and I can't get that folder back to a 656MB ISO. Thanks anyways though.

    James
     
  4. Petros

    Petros Thief IV

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    It could be that the original ISO references the same physical location of the file on the disc over and over. Let's say you have a folder with a 200MB file, but another folder with the same file in it. No need for it to be written twice on the disc; you just tell the image to look for it in another location. That way you save that 200MB, because there's no need for it to be written twice to a disc.

    You can make an image like that with a program like CDimage or CDimage Gui.
     
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  5. kcnychief

    kcnychief █▄█ ▀█▄ █ Political User Folding Team

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    I would use WinISO. Program works great, I have used it for years. It even lets you edit files within the ISO in some cases without having to extract.
     
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  6. Luna

    Luna OSNN Senior Addict Folding Team

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    Ditto, I've used it as well and it lets you modify, add, and remove files from Images.
     
  7. jpom

    jpom OSNN Addict

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    Well so far it looks lke winiso works. I tried cdimage, but no matter what it was still to big. I used to use WinISO but found that it had problems dealing with other image formats that UltraISO didn't. Either way I went back to WinISO and was able to edit the text file and save it back on the disc without a change in the file size.

    Thanks for the help guys.