I have a Gateway FX running Intel core2 quad at 2.4 ghz and Win 7 64 bit. It has 2 generic DVD/CD R/W drives and both read most discs but recently I tried to install Turbo Tax and neither drive would read the disc. I then put the disc in my Win7 64 bit laptop and it came up just fine. I also tried it on an older WIN XP machine and it worked there too. The failure to read also happened with a disc burned with some medical files at a local office. I opened the disc properties window and when I tried to see the disc properties the drive said the discs were blank (empty). I tried uninstalling and reinstalling the drives with no change in the outcome. Other than these 2 discs I've not had any problems. Are there setting that I can change for the drives? They are suppose to read any format.