Hi,
The Hardcore Extreme dvd contains 3 workouts, actually. Each one is an amalgamtion of workouts from the Hardcore Series. The first one is circuit, and the other two are pure cardio. They all run about 70 minutes, and are very advanced. If you aren't familiar with any of the Hardcore Series workouts (IMAX3, KickMax, High Step Challenge, LowMax), you may find the HardCore Extreme workouts difficult to follow. Repeated previewing is highly suggested.
I like these workouts, and for me, they were worth every penny.
Cheers,
Sandra