Starting with Solaris 8 (2000), Sun introduced a lofi driver which is very similar to my fbk driver from 1988. The lofiadm command seems to implement the basic idea of my fbkset program. # lofiadm -a /var/tmp/image.iso /dev/lofi/1 # mount -F hsfs -o ro /dev/lofi/1 /mnt # ls /mnt etc. To remove this, you need to: # umount /mnt # lofiadm -d /dev/lofi/1 The /dev/lofi/.. string may change depending on how many other loopback devices you have configured. It is explained quite clearly in the man page, but you may wish to update the README and cdrecord man page to reflect the new way of doing this.