On Mar 9, 2:51*am, Stefan Heimers wrote:
GARY wrote:
After that posting, I removed the top of the unit and discovered that
4 discs had been inserted (instead of only 3). *By removing the extra
disc, the disc tray then would open..

Maybe the additional disc that was jammed bent, scratched or broke off part
of the optical system? The lens should be able to slightly move in all
directions. When started, the player usually first tries to adjust the focus
by moving the lens up and down. Does it do that?

Yes, the lens moves up and down.