The .iso track contains an ISO file system, which can be mounted through a loop device on Linux systems, or written on a CD-R using cdrecord. The .cdr tracks are in the native CD audio format. They can be either written on a CD-R using cdrecord -audio, or converted to WAV (or any other sound format for that matter) using sox. bchunk can also output audio tracks in WAV format.
Debian / Ubuntu: sudo apt-get install bchunk
OpenSuSe 11.2 user can use "1-click" installer - here
Now enter the following command: bchunk
where the image.bin is the file that contains the actual data, image.cue is the catalogue file and basename is the name of the "output" that extracted files will go to. This command will create an iso image caled basename.iso
Enter the following comand: sudo mount -o loop basename.iso /mnt, this command will mount the iso file to /mnt
List the content using sudo ls /mnt