Occasionally I will get errors in my event viewer when I burn a music dvd or data disc. The errors are, device cdrom has a bad block and nvgts errors. If nvgts is to do with nvidia then what would that have to do with my dvd writer? I noticed after that dvd was made it had a cyclic redundancy check errors on it and it was a brand new disc. Also it gave me crc errors and the same errors in event viewer of cdrom and nvgts when trying to copy the disc contents to the hard drive. What I don't get is what would cause these errors when burning a disc and how did a brand new disc get crc errors? If anyone can help me that would be great. Thank You!