Window 7 pro dma to pio change

Self built--windows 7 pro-- i-5-2500 intel 330mg sp-1--- ddr3 with 16gb ram 1600 speed --250gb hd --650w power--vga msi-r5450--gigabyte mb-- ga-p67a-d3b3---rev 1--bios ver- fa.
I'm using 2 dvd burners and 2 blu-ray burners, and every thing was ok till i got a bad dvd i was backing up---all 4 driver changed to pio and slowed down---i've tried to use divice manager to unstall and reboot----unplug from mb and reboot then reconnected to bm and reboot---in bios no option to select dma----using reg edit was told to delete keys--was no keys to delete. Don't know what else to try.
Am i stuck with this-- if so ---i can live with it.
Thanks james pack

 

More info----mb has 6 sata---#0-1 are 6gb and 2-3-4-5 are 3gb am using sata 2 -3 -4 5 for dvd's