Like P90,10-minute trainer is a series of video's. One 10-minute video for Cardio, Total Body, Lower Body, etc. You can perform one each day or more for accelerated results. 10-minute trainer is geared more for older people and women so a single 10-minute workout may feel like a long warm up for some. You dont have to do 3. I do 3 b/c my fitness level isn't that bad but not quite at the P90x level.
Here's part of the chart,