The other night I was watching a movie on my Toshiba Satellite L455-S5975 when the disk began making a strange noise. I immediately removed it, wiped it off, and reinserted it. It made the usual noises of reading the disk, but then it stopped and nothing happened. I went to the D: drive under "My Computer," and it said that the DVD was in there, so I hit auto play. Instead it ejected my disk and told me, "Please insert a disc into drive D:." Since then, I have not been able to get any DVDs or CDs to play. The drive is still there, and I know it's reading the disc because it specifies the type of disc I inserted. Any idea of what might be wrong and how to fix it?