Panasonic FZ-1 and Goldstar audio compact disc eject:
Press X to stop playback of an audio compact disc. Hold LS + RS, then press X + P. The CD tray will open without the use of the "Open" button.

Panasonic FZ-1 asteroid audio:
The ROMs in the original Panasonic FZ-1 do not play any audio during the "asteroid" screen that is displayed when the unit is left powered on with no software in the disc tray. Hold A during this screen to hear the sounds.