CDemu for Linux is a software suite consisting of
a kernel module, a library, a daemon, and clients.
It allows for mounting CD-images in Linux and
emulating a CD/DVD drive and disc.
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The program can now be safely used on multi-user
systems. Any user can mount an image in an empty
CDemu slot, and only the user (and root) can
unmount a slot already in use. A 2.4 threading patch
for avoiding locking issues that may fix SMP issues
varying from lockups to very poor performance is now
also available, but has not received much testing.