etc/udev/debian/simple-cd-aliases.rules

   1 # grouping of optical drives from multiple kernel subsystems
   2 BUS=="scsi", KERNEL=="sr[0-9]*",                         SYMLINK+="cdrom%e"
   3 BUS=="ide",  KERNEL=="hd[a-z]",   SYSFS{removable}=="1", \
   4         PROGRAM="/bin/cat /proc/ide/%k/media", RESULT=="cdrom", \
   5                                                          SYMLINK+="cdrom%e"
   6 BUS=="ide",  KERNEL=="pcd[0-9]*", SYSFS{removable}=="1", SYMLINK+="cdrom%e"
   7