|Here's another 'possible' fix for DMA problems:|
Windows XP is the operating system
A CD-ROM or DVD-ROM drive, which is known to support DMA mode now works only in PIO mode.
The drive controller is set to use "DMA if available" but reports to be only in PIO mode.
Find the following KEY:
The last four digits will be 0000, 0001, 0002, 0003, and so on.
Under each key, delete all occurences of the following values:
Reboot the computer. Windows will now redetect DMA settings."
NTVDM = NT, Win2K and WinXP Virtual DOS Manager