Downloaded and followed the great step-by-step and have been using it for a week or so now with zero problems. I have used other programs and this one is by far the easiest and best one I have found. The only one that will consistently RIP my BluRay collection. Just wanted to say thanks and I just purchased the full version today.
For those interested.... I am running Ubuntu+gnome-shell:
$ cat /etc/*-release
$ uname -an
Linux PowerPCu 3.0.0-13-generic #22-Ubuntu SMP Wed Nov 2 13:27:26 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux