Exercise DVD recommendations

I'd like to recommend the following exercise DVDs for you all:

* Star Trainers Ab Blast
* Gilad Elite Forces Fat Burning Workout
* The Works With Sharon Mann: Cardio
* Shape Up With Sharon Mann: Circuit Training
* Shape Up With Sharon Mann: Kickboxing
* 30 Day Shred (Jillian Michaels)
* Fat-Burning Workout for Dummies
* S.W.A.T. Workout: Extreme Weight Loss & Fat Burning