Subject:   -42- How can Joe User mount and unmount his magneto-optical
                disk?
Date: 05 May 1995 00:00:01 EST

  cdromd (mediad in IRIX 5.x) doesn't understand MO disks. You need the
  'mountmo' program to mount/unmount an MO disk from the command line or
  the 'automopper' daemon to do it for you. The source code for both is
  in ftp://viz.tamu.edu/pub/sgi/hardware/mo/.