HL-DT-ST DVDRAM GSA T20N ATA DEVICE

Fixing the problem simply involves deleting the filter entries for the third-party device drivers. These entries can sometimes become damaged (which is what produces the "corrupt registry" warning).To delete the offending keys, open the Registry and navigate to HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlCl ***\{4D36E965-E325-11CE-BFC1-08002BE10318}. . Delete the keys named UpperFilters and LowerFilters and reboot.Several of the products made by Roxio are infamous for causing this problem, although in fairness to the company the most recent versions of their Roxio CD/DVD writing software (6.2 and higher) do not have these problems. Users of 5.0 or 6.0 editions of the Easy CD & DVD Creator product, which has been bundled with many new PCs in the past, should upgrade to 6.2 or better. Other programs can also cause this problem, with the same solution.
Note that after you do this, you may lose functionality in the program that uses the filter drivers, which may need to be reinstalled.