Under KDE (or probably under no-desktop), run: nautilus --no-desktop burn: (Particular URL isn't important) Watch lots and lots of nautilus processes fight over your machine. (I'm not _completely_ sure what's going on, I have a hard time getting any response out of the machine.)
This doesn't happen to me. (nautilus 2.1.5-2)
This is fixed in nautilus 2.2.1-2.