Instructions
Press the "Power" button, which is on the right of the system, underneath the disc tray. In order for you to be able to remove a disc, the PS3 must be turned on.
Press the "Eject" button, which is the circular button just below the center of the disc tray. The disc slides halfway out of the disc tray.
Grab the disc with your hand and slide the disc out of the tray. Place the disc into a case for safekeeping.