yes you can, it requires special software, a modded PS2, DVD burner and a bit of general programing knowledge. I tried googling it for the full tutorial and came out empty handed, but I'm sure the guide is floating around the net somewhere.
found the link
Link
its a great bit of work, although worth it if your truly determined.
[Edited by Moderator insomniac, 10/8/2007 5:46:44 PM]
I stand corrected...