I can't say if it has anything to do with your security stuff, but if your cdrom is scsi, then you might need to make sure you have scsi modules loaded into the kernel (unless they're builtin):
and the same for
ide-scsi probably..there was a third module that might be needed (?) but can't remember it's name. Check out
Code:
modprobe -l | grep scsi
for the module names.
This was a reason why I was unable to mount any usb keys or flash cards, it only succeeded after modprob'ing the scsi modules..though, as I said, your problem is not necessarily because of this.