Sony VAIO VGP-UDRW1 Operating Instructions Manual page 18

If the disk does not eject
If you may not be able to remove discs simply by pressing the eject button,
verify the BUSY indicator is not flashing, then insert a pin or thick
paperclip, etc., into the manual eject hole. The tray pops out, allowing you
to remove the disc
GB
18
Manual eject hole