NRG is a proprietary format used by the Nero Burning ROM closed-source application to create CD/DVD images. A port for Linux is also available, but I recommend using K3b, a very powerful and open-source burner for KDE. In this tutorial I'll explain how to use nrg2iso and iat, two command line tools for converting between various images in Linux.
As a note, Ubuntu users just precede the commands which have to be run as root with sudo.
There is a simple command line tool which converts NRG Nero CD images into ISO images. The tool is called nrg2iso and it's included in the repositories, so to install it type as root:
apt-get install nrg2iso
In order to convert a NRG image to ISO use it like this:
nrg2iso cd_image.nrg cd_image.iso
It also provides a progress bar.
Another handy tool is iat, which allows you to convert many image formats to ISO. According to the manual page, iat supports the following images: BIN, MDF, PDI, CDI, NRG, B5I. Although I only tested it on NRG, I'm sure it works for all the formats mentioned above. It's included in the Debian repositories, so install it using apt-get install iat, and use it like in the following example:
iat cd_image.nrg cd_image.iso
iat cd_image.bin > cd_image.iso
Updated: Sep 11, 2008 (Created: Jul 04, 2008)