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How to Convert .DMG to .ISO on Windows Computer.


dmg ISO image is an unattached file format (like RAR and ZIP): it merges a series of files into one single file according to a definite format. The most important feature of an ISO image is that it can be burned to a DVD, VCD, or CD by using an ISO image burner, like ISO Maker. It can also be opened using archivers such as 7-zip file manager. Apple uses Disk Image a file with the extension .dmg When opened, DMG files are “mounted” as a drive within the Finder. This guide is for Windows users who might have downloaded a dmg file and wondering how to extract the content, or not even knowing how and what to do with the dmg file.

1. Download MagicISO, install and run program.

2. Click  opento open DMG files.


Magic ISO 1


3. Click   properties to open “Properties” dialogs.


4. Uncheck Apple HFS and Apple HFS+


Magic ISO 2



Magic ISO 3  

6. Click OK

7. Click saveas to save as to iso image. or click cdburn2 to burn to CD/DVD without saving.


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Comments ( 20 )

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  1. bikash Shrestha March 24, 2011 Reply

    HEllo Brian Turney,

    You are a real Budbak. i mean you are right Mr. Genius

  2. coolkid February 11, 2011 Reply

    every one who gets the error just make your dmg file name shorter

  3. burak January 20, 2011 Reply

    I ve just tried TransMac and am able to extract the dgm file now!

  4. Don Juan January 10, 2011 Reply

    Fuck you MagicISO…

  5. kiko January 7, 2011 Reply

    actually ransmac 8.1 program is able to open the .DMG file then you can copy / paste all items in to your PC harddrive :)))


  6. Kilo April 25, 2010 Reply

    It’s not working. I can’t even open the file.

  7. Bob February 14, 2010 Reply

    MagicISO does work, unfortunately it only works for CD .DMG images, anything larger then that and its rejected

  8. E|r|R|i|K|i January 5, 2010 Reply

    You can use PowerISO to convert DMG to ISO. Works every time. Guarenteed.
    I would say that it (PowerISO) is an essential tool for every OSX86 Fan.

  9. K Y November 25, 2009 Reply

    If only Apple knows the meaning of ISO standard, they should use ISO image in the first place. Insted, Jobs created a new format of CD image which cannot be used by any computer except Mac PC. Even if you can convert DMG to ISO, they cannot be opened by any other Linux or Windows based PC. This software only conver the part that are formatted by NTFS or FAT32. Apple computer is for layman or people like to show-off, Fedora rules.

  10. Jinahrel, Myst Sage November 11, 2009 Reply

    You were just very lucky, most of the time it rejects you.

  11. guerito November 10, 2009 Reply

    maybe I was just lucky…but, I’m converting a 7gb dmg to an iso as I type this…actually…just finished…and it worked great – using Magic ISO 5.5

  12. GriNinja October 14, 2009 Reply

    Or you could try AnyToISO Converter (http://www.crystalidea.com/anytoiso). This is a freeware and I just used it to convert a dmg file to iso.

  13. Jinahrel, Myst Sage October 10, 2009 Reply

    ashok is correct. In fact you can burn the mac disc or you can open the .dmg file and copy the files from the disc, and onto your computer. Then you can use magicISO or any other .iso creator to make the disk image (.iso). Have fun!

  14. ashok September 22, 2009 Reply

    hey i have the solution of this problem
    u should try ransmac 8.1 for burning the mac dvd and yhen after that if u want the iso format then u can do it by any software like power iso,magic iso,ultraiso etc
    if u ha
    ve any pro than u can contact at my no: +919463892622

  15. Sniperwolf August 21, 2009 Reply

    I have the same problem it is shit MagicISO do the same thing I am doing right now go on torrentz.com and look for Mac OS X Install DVD (Leopard 10.5.1).iso and MAC.OSX.SNOW.LEOPARD.V10.6-HOTiSO i v got then around 20 to 30% now and still going strong hope this help

  16. QWERTYUIOP August 18, 2009 Reply

    It’s so rubbish claimed to work never worked is there another way to do this?

  17. NewGod July 5, 2009 Reply

    Yes ! In this story MagicISO is really a garbage although they claimed that it could work.

    I could open the DMG file just by dragging it into the file section of MagicISO. Then I followed their instruction , I saved the file into ISO . Yes, I got an ISO file .

    But that ISO file was just a shit . You know, I opened that ISO file with Daemon Tool, then I got … the same DMG file as the original .

    I tried again and again in several ways. Now I just can say that MagicISO producer are just liars.

    What a waste of my time !

  18. Brian Turney June 26, 2009 Reply

    I’m an IT consultant and very experienced with MagicISO, powerISO, macs, pc’s, and computers in general. I’ve tried various versions up to the most recent version as of 6/26/2009 and these steps have NEVER worked for me. I wish people would stop posting these steps. I’ve used MANY different DMG files over the years that ALL have failed using these steps. Simply put, IT DOES NOT WORK. MagicISO DOES NOT convert DMG to ISO even though I’m sure they claim that it can.

  19. tj June 21, 2009 Reply

    i get the same thing cant find the file or isnt a cd image file email tajinder.32@hotmail.com

  20. me June 16, 2009 Reply

    after doing these settings and trying to open the .dmg file an error, can’t find file or isn’t CD image file pops out. is my image corrupt or is there a compatibility issue? thx

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