For many many many hours now already in use! During startup, he needs his Bedenkminute so that it can initialize itself. Did it never updated, yet he played all my> 400 discs and many borrowed without exception. If, however, sensitive to off-center slices (unbalance-booming). The pity is that Sony so little emphasis on user-friendliness. Ie for example skipping the disclaimer bla-bla-bla, etc.