Yeouch. Sorry about your knee...
Hmm...it is interesting that the DVD's are 30 minutes. I seem to recall Jillian saying somewhere (can you tell I'm a bit of a fan?) that this was a result of the marketing people and not her choice.
Ya know what? I haven't done her shread workouts either. I have the book but I've had a really annoying case of tendonitis in my elbow since December. I'm just barely getting back to working upper body workouts back in.
I have done the workouts from her first book - they are pretty similar as far as I can tell.
I've never seem a Jillian workout that didn't kick my butt. So - in my book, anyone who has tried her workouts is allowed to discuss.
Now that I've hijacked this thread, how is aerogora?