I am a Taebo and B.blanks fan, and I've been looking for a killer workout. I started back in the late 90s with the original 4 tape vhs set, and I also own Cardio and Bootcamp 2 series. I've rented a couple others, because I have been looking for the hardest most advanced workout I could find. Those other ones are good, even though Cardio wasn't as challenging as I had hoped for. Boot Camp 2, I do both workouts back to back for the killer burn I desire, so its not challenging enough. My search is over with Get Ripped Series. I found this jem on Amazon, and I've read some great reviews. Its a 2 disk set with 6 workouts: 2 8 minute, 2 basic, and 2 advanced workouts. Billy don't play on these workouts folks. The basic workout is much harder than the bootcamp ones, and the advanced ones are killer. You are talking near 60 minutes from start to finish or stretching and pure workout hell. Billy pushes you at a pace that I have to work my way up to. Boot Camp 2 is good, but I have to do both workouts back to back to get the burn from just one of the Ripped Advanced workouts. I freaking love and you will too, once you build some stamina. The fact the entire set is under ten bucks is a plus too. Go for it and you won't be sorry.