There is some good discussion on the various versions of different demos floating around in this thread:
http://forums.netphoria.org/showthre...t=55556&page=4
Information on the Sequence IV (scroll down):
http://forums.netphoria.org/showthread.php?t=167676
Pmack says it comes from Courtney Love. It seems he has a copy without an NR too.
http://forums.netphoria.org/showpost...80&postcount=9