neroIn case you need to convert Nero image file .nrg into regular ISO9660 .iso utility nrg2iso might be helpful then. It’s included into apt repositories of Debian and Ubuntu, so to install it execute:

sudo aptitude install nrg2iso

When it’s done, convert file by command:

nrg2iso image.nrg image.iso

Rather trivial task, right? 🙂




  1. January 22, 2008  7:41 pm by Downer Reply

    Except it often doesn't seem to generate usable ISOs. Give it a try sometime.

  2. February 22, 2008  6:39 pm by Patrick Reply


    if it complains about unknown endianess and you're using a x86 compatible machine, you can add


    to the CFLAGS in the Makefile.



  3. April 7, 2008  3:24 pm by masterdave208 Reply

    this is a nice programm .. thank you

  4. August 23, 2008  3:58 pm by Arne Reply says that the file is not a valid ISO9660-File. DAMN!

  5. September 16, 2008  9:38 am by Diego Reply

    Thanks, it worked fine.

  6. November 16, 2008  6:54 pm by Bisuletz Reply

    Very useful! thanks

  7. November 17, 2008  1:14 pm by Sangas Reply

    I found this handy command from somewhere (I can't remember where) which will mount a Nero Image:

    mount -o loop,offset=307200 image.nrg /placetomount

    It turns out that a Nero image is just a ISO with an added header so we just skip the header to so can mount it.

  8. January 21, 2009  1:39 pm by chewbacca22 Reply

    Thanks! worked like a charm... :D

  9. January 28, 2009  4:37 pm by yo9gjx Reply

    i test version 0.4 and is working fine

    8 nrg img converted in iso and all burned on cd working great

  10. May 25, 2009  8:21 pm by aNxello Reply

    Thanks for the info i really needed it =D it worked great ;)

  11. July 1, 2009  11:09 pm by viko Reply

    funny when i try

    'nrg2iso image.nrg image.iso' (without sudo) is says: 'Segmentation fault'

    anyway, works great whit sudo :D

  12. August 30, 2009  9:42 am by Anish Reply

    thankx... gr8 job....

  13. November 27, 2009  11:43 am by Mariusz Reply

    >> Crap…it says that the file is not a valid ISO9660-File. DAMN!

    Exactly. I have had the same experience. Crap.

    @ Sangas

    >> mount -o loop,offset=307200 image.nrg /placetomount

    Sorry, this doesn't work:

    # mount -o loop,offset=307200 myfile.nrg /media/disk

    mount: you must specify the filesystem type

    or you posted without checking if it worked? [I am using Sabayon 5.o, an excellent Gentoo based distro.]

  14. February 6, 2010  5:58 am by Joe McKenzie Reply

    nrg2iso 1.0.1 just announces that my .nrg file is a Nero DAO with 1 session, generates a zero-byte .iso file and exits with no errors.

  15. April 7, 2010  4:50 am by 4net Reply

    Wow. That was fast. Ubuntu 9.10

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  18. July 13, 2010  2:33 am by jin Reply

    i installed using apt-get
    i typed in convert command the simple way ex: [nrg2iso image.nrg image.iso] and the detailed way ex: [nrg2iso home/compname/desktop/image.nrg image.iso]
    both ways the terminal always says “image.nrg no such file” or ” home/compname/desktop/image.nrg no such file”

    is there something i’m missing?? the .nrg file is a valid i checked it and i can mount it but i need to install this program via virtual machine so i need .iso file.

  19. September 16, 2010  11:38 pm by Chris Coty Reply

    I noticed that Nero likes to name the default 'Image.nrg'. If that's the case for your source file, make sure your case sensitive I is correct, otherwise... 'no such file' good luck.


  20. September 25, 2010  9:26 am by che Reply

    >sangas _Brilliant mount -o loop,offset=307200 image.nrg /placetomount
    worked like a charm on 3.0ghz hp 512 ram :( puppy linux 4.31 :)

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  26. February 19, 2011  7:40 pm by zeki ural Reply

    sudo apt-get install nrg2iso

  27. April 11, 2011  12:22 pm by Anonymous Reply

    Doesn't work for me. First I get this error message:

    mount: you must specify the filesystem type

    Then I add "-t iso9660" which gives other messages:

    mount: wrong fs type, bad option, bad superblock on /dev/loop0,
    missing codepage or helper program, or other error
    In some cases useful info is found in syslog - try
    dmesg | tail or so

    Any idea of what to do?

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  29. April 24, 2011  10:01 am by Anon. Reply

    Hello everyone,

    The problem with the NRG file it seems is that it is more than merely an ISO file plus header.

    However, you can treat them that way if they are Disc At Once (DAO) written (i.e. the mount command, the nrg2iso (or the dd command) will all work just fine. However, when it is Track At Once written, NONE of the linux based tools will be able to convert the file to a usable ISO.

    It may be possible to use some of the windows options through wine or a vm to do the conversion however.


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