What is your favorite workout DVD's?

Stinkybug

I have a few workouts DVD's that I use, but I was thinking of adding to my collection just for more variety.
What are some really good ones? I just ordered a Zumba set, but I am not sure if I can keep up with that yet.

Sarabelle13

I love P90X. It is a really great workout and it goes by very fast! The downfall is each workout is an hour or longer but each one burns 600 calories!