Help! I can not read or wright to a CD. The green light runs and the head accesses but can not read the disk nor wright to it. This is true of commercial music CD as well. DVDS play fine. I have reinstalled the drivers and have cleaned the registry. I first had the problem trying to burn a CD from Itunes so uninstalled and reinstalled Itunes of the same version 8. something. Drive is a optiarc RW AD 7561A, driver is MS windows 6.0.6001.18000 , Vista home 32, Compaq presario A900. I don't know where to go next.
Thanks,
Henry