PS3 disc spinning but game will not show in XMB

Hello,

I own PS3 FAT CECHCxx with 60GB HDD. I bought it with YLOD which has been succesfully fixed.

However I have problem with blu ray drive.

Disc goes to drive and it is spinning (I lifted cover, so I can confirm that it is spinning)

However disc is NOT showing in XMB menu. I cannot run it. I tried different discs-no success.

I also tried to clean laser, restore PS3, rebuild database option-still doesnt work.

Do you have any suggestions?

Thank you

Vladimir