Nero, Nvidia + DMA Mode

I am using Nero Burning Rom and Recode 2 and although its working fine there seems to be an issue with my DMA selection. I am using a Plextor 708A(DVD +/- RW) on an Nvidia mobo(msi K8N Neo Plat) which of course uses the NForce3 250 ATA controller. When I check the controller in device manager it shows the Plextor's transfer mode as "UDMA 2 - Ultra33". However when I check the logs created by Nero this is what I see:

=== Scsi-Device-Map ===
CdRomPeripheral : PLEXTOR DVDR PX-708A nvatabus Port 0 ID 0 DMA: Off
CdRomPeripheral : TOSHIBA DVD-ROM SD-M1212 nvatabus Port 0 ID 1 DMA: Off
DiskPeripheral : ST340810A nvatabus Port 0 ID 2 DMA: Off
DiskPeripheral : WDC WD740GD-00FLA0 nvatabus Port 2 ID 2 DMA: Off

As you can see from the nero log all my devices are shown with the transfer mode DMA as off even though in device manager all are shown with the transfer mode "UDMA 2" or in the case of the hard drives ST340810A has a transfer mode of "UDMA5" and the WDC drive which is a sata drive has its transfer mode set to "Serial ATA DMA". Would anyone have any idea of what is going on here.