I have an Asus U50 with a Matshita DVD-RAM UJ892AS drive. It had worked flawlessly for months, but now it takes several tries to get it to read a blank disc, and it won't read a DVD game disc I have at all, although it used to. The game works in other computers, so it isn't the disc.
I've tried updating my drivers, though they are up to date. I've tried disabling and re-enabling. I've tried resetting my default BIOS settings.
I've also tried using canned air to clean it out.

All other DVDs and CDs I've tried have worked, it's just this one disc that won't, besides the blank discs, which if they don't work usually work on second, third or fourth try.