Hi all, i have the latest 1.20 firmware and everythings been fine untill 2 days ago i burned a cd-rw at its max 4x, and now all my dvd-rs and cd-rs dont burn past 4x and i checked with nero system info and it says my read speed is 8x and burn is 4x. im not sure how to fix it 
Uninstall the IDE channels in Devicemanager, then restart.
Then check for DMA mode.
How do i check for DMA mode? or what do i check it for?