CD-ROM/Burner and DMA

[Nightweaver2]

Here's a (hopefully) quick and easy question:

If I have both a CD-ROM and a burner on the same IDE controller (CD-ROM as master) and turn on DMA for the CD-ROM but NOT for the burner, does the burner still utilize DMA? The techs at HP were telling me this is the case, but I have never heard of that before. Does the burner use DMA, even if I am not using the CD-ROM to burn (ie. burning from the hd)? Does this mean that in order to use DMA on my CD-ROM, I should put the burner on its own controller?

The reason I haven't is because I never burn from CD to CD so I didn't think it would make much difference if both were on the same controller (was more convenient that way).

Thanks in advance,

Nightweaver

 

[LED]

Put the Burner as the Master(DMA) followed by the CDROM...and yes use the same IDE port.

 

[Nightweaver2]

So, are you saying that if the burner is the master with no DMA, then it won't use DMA, even if the CD-ROM (as slave) does have DMA checked?