My Ps3 Doesn't work

hi i was playing black ops and out of no where it freezes after the game when u get the black screan and the black ops thing at bottom right i restart my ps3 and it doesn't show that the disc is in the drive. i take it out and clean it but it was in mint condition just bought. after like 20 minutes it registers again and i play after 2 games it crashes again anyone help its been doing this for weeks.

im thinking out throwing it away and getting a new one:no:

How old is your playstation 3? It sounds to me like the laser ray is dying while reading the game disc when you put it inside the gaming console. Have you tried to clean the inner layer with some dry cloths and checked whether it works for you or not. You can even try to replace the laser inside the ps3 but that will cost you some penny, which is far more better than throwing away the ps3.