I just got done doing IMAX2 today, and I just had to let you know that I love the step routine for interval 10! It makes interval 9 worth getting through. It's the most fun step routine on the whole video, and that's not saying much, because the whole thing is sooooo much fun! I have never looked forward to doing an interval workout before until this tape came along. Wooo hooo, thank you Cathe!