I had a feeling that'd be the case. Argh, frustrating, as the DVD is part of a box set and I don't speak to that particular friend anymore. Oh well, we learn from our mistakes. :)
Have you tried resurfacing the disc? Sometimes it's effective. You can get amazing results from commercial resurfcers if a rental store nearby has one, or there are kits you can buy for $10-50 of varying quality.
--------------------- Pete 2002 M Coupe 2011 X3 2008 M3/4 sold 1998 M3/4 sold