I found this on Exercise TV today, and I know it's also sold in stores. It's a workout series featuring 3 20 minute workouts. I figured it wouldn't be much of a workout, but the reviews on Amazon were stellar (not a single bad review, and that is rare), so I gave it a go. Oh my was it a butt kicking workout!! She uses a system of 3 minutes strength, 2 minutes cardio, 1 minute abs, in 3 cycles. There is no resting and you are moving through the cycles and circuits back to back. I followed the "Biggest Loser Sculpt" with this one and then did a 10 minute core abs and it kicked my butt. Has anyone else done this workout? I can't see myself moving to Level 2 for a bit, but I'm definitely going to give it 30 days and see what results I get. This workout packs quite a punch into a short amount of time. They have the first 2 workouts on Exercise TV On Demand, the 3rd is not there yet, but I know it's sold at Target and on Amazon.com.