As I understand it, to get this to work involves a recompile of the kernel.
First question is, how and what do I use to get DMA to work...
I was given 2 links about this, but haven't tried yet:http://thomer.com/howtos/dma_on_sata_dvd.htmlhttp://www.thinkwiki.org/wiki/Problems_with_SATA_and_Linux#No_DMA_on_DVD_drive
...and second, why isn't DMA included as default?
This seems to be something the sata driver devs need to address.