My MBP has been acting up lately. It seems that whenever I put a DVD into my drive, it sounds like the computer is reading it or attempting to and then spits it back out. When I put the dvd back in a second time, it reads it just fine and mounts it on desktop without any problems. Doesnt seem to matter what kind of dvd it is; game, movie, etc... The SuperDrive only reads it when I put the disk in the second time. Any tips or advice would be greatly appreciated. Thanks. Oh and I'm running 10.5.6.