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.