I've tried several Blu-Ray titles and none of them worked. I tried the same discs on the PS3 and no issues playing them.
I also tried DVD discs on the Blu-Ray drive and I had no problems with them.
I downloaded a trial copy of DVDFab and also VLC on the desktop to test the Blu-Ray and DVD discs.
Is it possible that the Blu-Ray components on the drive is not working while the DVD/CD bits are ok? Like perhaps it uses 2 lasers?