Try this. It works with some brands.
Power on the unit. Using the Remote Control, Press and hold the 'STOP' button for about 5 seconds, Release and then press the 'OK' button.
If this doesn't work, the tray track may be worn or misaligned.
Harvey1946
January 2009
Automatic Answer
We may have found other answers which could help you.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix dvd players.