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I want to open a ISO file, add files and then burn it to a disc.

By example, I get the Windows98 SE boot disk. That ISO have 2.6mb, and if I burn the iso, I will lost the remainder 697mb of the disk!

To burn the ISO, I use CD Burner XP or ImgBurn, but I don't know which free tool I can use to add/remove files before burn.

Thank you very much!

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up vote 6 down vote accepted

You can use MagicISO trial version. It's have 300MB ISO size limit for trial version. But still worth to try i think. But, i don't know will it still bootable after editing. It still bootable, i've tested it.

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I need it "bootable"... :( – Click Ok Jan 29 '10 at 20:57
i'll try, just wait :) – wildanr Jan 29 '10 at 20:59
+1 looks like this would work for me too. – therobyouknow Nov 25 '11 at 8:30

You can use your Windows 98 Boot Disk (or any other bootable disk image for that matter) with ImgBurn (which you already have).

Choose Build Mode, add your files and then make it bootable, detailed instructions in this tutorial:

ImgBurn Build Mode - An Overview

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Second vote for ImgBurn - it really rocks. You can master directly to a CD/DVD or ISO, complete with bootable images. You will need to extract the boot image for your Win98 ISO, which you can even do inside of ImgBurn. – Goyuix Jan 29 '10 at 22:41
+1 I love imgburn. It's in my top free essential programs. – therobyouknow Nov 25 '11 at 8:31
  1. Mount (using Virtual Clone Drive for example) the .iso files you want and copy all their contents to a new folder.
    Use a program like 7-zip to extract the .iso contents to a new folder.

  2. Add/remove/modify anything you want in the new folder.

  3. Use the free program ImgBurn to "Write files/folders to disc".

    • Select the the new folder and/or any other files you want.
    • Make the compilation bootable. Go to "advanced" tabs in ImgBurn and then to "Bootable Disc". Check "Make Image Bootable". Detailed instructions for that here.
  4. Burn to a disc.

PS: It is an old question, but I think some people could benefit

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For Windows, there is no free software that can directly manipulate the contents of an existing ISO file. Of course, there are lots of shareware programs. See the full list with detailed comparison here.

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Oh yes there is. WinISO has been around for years and years. – barlop Sep 9 '13 at 17:17
@barlop WinISO Standard have limitation of 500Mb images. It's a shareware not freeware. – jibiel Oct 21 '13 at 8:56

You can edit any iso file contents with WinRar. Just Right Click on the iso file and select open with winrar. Thats all

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yes man, yes! i was going to say that, why this question is so upvoted and more importantly why is everybody giving 3rd party software! iso files are just zip files, zipped in a different format, winrar will do the job, or 7zip with some extension or whatever – Lynob Sep 9 '13 at 18:40

I'd use Virtual Clone Drive, you can extract whatever files you need and then create another ISO or just burn a disk as if you were using a file system.

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Nice idea, but I need something where I modify the files and not recreate... – Click Ok Jan 29 '10 at 20:55

magic iso, and ultraiso are classics, been around for ages, but not free

there's WinISO. Years ago it didn't keep the bootable aspect of the iso(it worked great other than that though).

The current one looks very much like it does work with bootable ISOs. The webpage says it does, and I just installed it and it talks about bootable.

So this looks great this shows the free version they do Free WinISO Maker

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