..

, .
WINXP has nasty habit of permantly disabling DMA after reading
a bad cd and enabling PIO mode
http://support.microsoft.com/?kbid=817472
only way to fix is modifying registry as follows
navigate to here
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControl Set\Contro
l\Class\{4D36E96A-E325-11CE-BFC1-08002BE10318}
It has subkeys like 0000, 0001, 0002, etc. Normally 0001 is the primary IDE channel, 0002 the secondary, but other numbers can occur under certain circumstances. Check the DriverDesc value to see which one it is.
Delete MasterIdDataChecksum or SlaveIdDataChecksum, depending on whether the device in question is attached as master or slave, but it can't actually hurt to delete both. Reboot. The drive DMA capabilities will be redetected.
Open Device Manager again and should be using DMA mode
windwos 10
5th May 2023, 00:01 in Windows