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How do you do....it? Thread, Compressing an ISO file? in Technical; I have an ISO file that I need to compress - is that possible? Or maybe there's a way of ...
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    leco's Avatar
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    Compressing an ISO file?

    I have an ISO file that I need to compress - is that possible? Or maybe there's a way of splitting the file into two or more images? Reason for request - I'm sending the ISO to someone else and there's a size issue with uploads. Anyone have any suggestions, please?

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    You can use winrar to split it into several smaller files but as the ISO is compressed in itself, you won't save much/any space.

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    Quote Originally Posted by kmount View Post
    You can use winrar to split it into several smaller files but as the ISO is compressed in itself, you won't save much/any space.
    Yes thought that might be the case. Do you know of a piece of software that will make split ISOs - is that possible?

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    WinRAR archiver, a powerful tool to process RAR and ZIP files

    Winrar should allow you to take the ISO and create several smaller files which when extracted (again with winrar) will form the real ISO.

    I'll boot a windows machine up and try if you want some instructions?

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    leco (28th June 2009)

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    Quote Originally Posted by kmount View Post
    WinRAR archiver, a powerful tool to process RAR and ZIP files

    Winrar should allow you to take the ISO and create several smaller files which when extracted (again with winrar) will form the real ISO.

    I'll boot a windows machine up and try if you want some instructions?
    If you would, that would be great. Not a user of Winrar so have little idea of it's capabilities. Thanks.

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    Ric_'s Avatar
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    @leco: For an open source solution, use 7-zip. Does the same as WinRAR.

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    leco (28th June 2009)

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    Right click on the ISO
    "Add to archive..."
    At the bottom of the screen that'll appear there's a split to volume option where you can use a predefined option of put your own size in to meet your needs.

    Type a name at the top (or use the default one) and my personal view would be to change the compression from "normal" to "store" so it doesn't spend time trying to compress it any further in vein hope of saving a little. (Up to you though).

    This will create several files each ending in a number which if they're all together you can open any of them in winrar and extract the ISO.

    Not used 7-zip but I'm sure Ric could sort out some instructions for that if necessary.

    Hope this helps!

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    leco (28th June 2009)

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    Thanks I'll have a go with WinRar and 7Zip - see which one is smaller

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    Just tried 7-zip instructions are near on identical.

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    leco (28th June 2009)

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    7Zip wins on the compression front - only two files required. WinRar took three. Now to see if they will upload - wish me luck.

    Thanks for the help both, much appreciated

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    Quote Originally Posted by leco View Post
    7Zip wins on the compression front - only two files required. WinRar took three. Now to see if they will upload - wish me luck.

    Thanks for the help both, much appreciated
    7-zip rocks! If you send compressed items to ZeroHour you should always use it - it annoys the hell out of him for some reason

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    Quote Originally Posted by Ric_ View Post
    7-zip rocks! If you send compressed items to ZeroHour you should always use it - it annoys the hell out of him for some reason
    I'll try to remember that should I ever have cause to send ZH anything

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    Quote Originally Posted by Ric_ View Post
    7-zip rocks! If you send compressed items to ZeroHour you should always use it - it annoys the hell out of him for some reason
    something about it being opensource and non-MS maybe?

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    But he does like his iPhone so he's not a true MS fanboy like certain other members here ..... (whistles in the corner)

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    Quote Originally Posted by kmount View Post
    as the ISO is compressed in itself, you won't save much/any space.
    Are ISO files actually compressed - I got the impression they were simply direct byte-for-byte copies of the CD?

    --
    David Hicks

  20. Thanks to dhicks from:

    kmount (29th June 2009)

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