Here is something I found along time ago when my burners would burn discs very slow. After checking DMA/POI settings, they were still saying they were in DMA. Someone from another site told someone else to try this out. It's where Windows keeps track of "Scratched Disc" readings I guess. When it notices one, it will revert to POI and resetting the drive back to DMA won't work. Windows will automatically reset to POI and act slow. My kids like to play their games on my computer, and their discs are very scratched up. Resetting these values worked well for me. Maybe it will help some on here. By the way on my system the subfolders were 0006 and 0007. Just look for "Primary IDE Channel" and "Secondary IDE Channel" in the 4th column down.
Run "regedit" and follow these directions:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro
l\Class\{4D36E96A-E325-11CE-BFC1-08002BE10318}\000x
Click on the sub-folders 0001 and 0002. Among the keys inside those folders, you'll find MasterIdDataChecksum and SlaveIdDataChecksum.
Double-click the key(s), and delete the value assigned to it.
Reboot, and XP will redetect the drive's DMA.
It's up to you if you want to do this. I'm not a computer Guru, but this did work for me. If this doesn't work, always look on the maker of your drive's website for any updated drivers, or even try reverting to an old one like I did with my Samsung.
Run "regedit" and follow these directions:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro
l\Class\{4D36E96A-E325-11CE-BFC1-08002BE10318}\000x
Click on the sub-folders 0001 and 0002. Among the keys inside those folders, you'll find MasterIdDataChecksum and SlaveIdDataChecksum.
Double-click the key(s), and delete the value assigned to it.
Reboot, and XP will redetect the drive's DMA.
It's up to you if you want to do this. I'm not a computer Guru, but this did work for me. If this doesn't work, always look on the maker of your drive's website for any updated drivers, or even try reverting to an old one like I did with my Samsung.
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