HP Dvd Drive Reading Issue?

I have an HP G62 Notebook laptop. My dvd drive is internal and was playing cds and dvds fine. All of a sudden, I will try and play a DVD/CD and it will say that it is not a supported file type, when it is clearly a DVD-R or CD-ROM. I uninstalled it and reinstalled it, ran a microsoft fix-it, and checked the BIOS for its presence and it was there. Also the drive is set to region 1 (which is u.s.). Any help would be greatly appreciated.