My BDP9500 has been working fine for about 2 years, but lately it is having problems recognizing Blu-Ray discs (not DVDs).

When I insert a BR in the player there's about a 50/50 chance, that it will play. If not it tries to load for about a minute or two and then just lists the disc as "unknown". I have played these discs on my PS3 without problems.

I have updated to the newest available firmware for my player, but this has not solved the issue. What can I do?