atacontrol(8)

[Mike Maltese]

> Why to this file and not to /etc/sysctl.conf? I have no monitor on that
> box, so I want to make sure it is more likely to work after the reboot.
:-)

I can't remember exactly why, but trust me, it will work.

> But why does it sets it to UDMA33, but not to UDMA66?

Have you actually tried it yet? It should automatically set it to the
drive's highest capability (controller allowing). Frankly, I've never seen a
DVD drive, or any other optical drive for that matter, capable of DMA66, nor
would it even need to be (33 is the highest I've seen). In any event, give
it a try, I'm sure it will work.

Mike