I was burning a CD-R when I noticed that the progress seemed to be completely stalled at around the halfway point. I couldn't do anything to stop the burn, so finally I had to hard-shutdown my Mini. Upon reboot, the CD that's still in there doesn't appear as an icon on the desktop or in the Finder, so I don't know how to eject it. How do I get this CD out of the Mini? Thanks in advance for your help.