Apple PowerBook G3 - Manual (Page 22)

If you still can’t eject a disc, try this method:
If the standard methods of ejecting a CD do not work (or the computer is
shut down), you can eject the disc manually. Carefully insert the end of a
straightened paper clip into the small hole near the CD-ROM drive’s opening,
and push firmly until the tray disengages. Pull the tray open, remove the disc,
and close the tray.
Insert the end of a
large, straightened
paper clip into
this hole.
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