Yea, the media (normally) doesn't make a difference. It will in the near future with HD-DVD and blu-ray coming out, but right now it doesn't really matter, you just wasting the space of the DVD.
And just for the record, you can make a 1:1 image with a CD and DVD if you wanted :P
Seriously, though, I should make one of them speshul discs for when I next format and install.
Spiritual successor to System Shock 2, and not 1, to be exact.
[16:42] <+Deach> I'm going to bust one out over the BioShock demo.
In 2 hours.