i got a black slim PS2. I was able to play Winning Eleven yesterday morning but at night when I tried to play it again, it did not work. The disc spins for while then it stops, a message "the disc could not be read" appeared. It could not read DVD/CD either. What should I do to make it work again? Please help !!!! I reallly appreciate it.

Clean the laser eye with a Q-tip if that doesn't help the the laser needs replacing