Optical drive doesn't read anything

i have a dvd burner i/o magic and i have updated the firmware and still my dvd burner can’t read cd anymore only dvd.

i had the same problem with a client of mine and they had a HP dvd burner it was still under warranty so i called in that told me three different ways to check

  1. uninstall and reinstall from my computer/prop.
  2. try music cd, game cd, dvd movie, blank media
  3. then third was to go to regedit ,then ??? :confused: i forgot from there something with upper and lower ???
    HELP PLEASE

Remove upper & lower filters from the registry.