Yep, should have mentioned I have SATA in the original post. Also I have XP64.
In device manager I checked the IDE controller for the SATA (there's 2 controlers on my MB). There's no setting for DMA. The resources show some address ranges for I/O and the IRQ used. But nothigh shows a DMA channel number, etc. There's an option for 'use automatic settings' which is enabled and greyed out so I can't change it.
I think the PC is OK and configired properly. I suspect this all comes down to the DVD drive speed, and if movie discs typically have a limit on the read speed. I wonder what others that use
DVD FAB have been able to attain for read speed when doing a 1 to 1 (no compression) copy to hard drive.