My thoughts based on what I've read. The more cardio the better. If you can fit it in 5 days that's excellent. Strength training 2-3xs per week. Yes, when you are doing leglifts during an exercise video that is both cardio and strength training, but the muscles in your legs are large and can usually recover quickly. Are you sore when the next day? if not then you are probably fine to do the video daily. If your legs feel sore or overworked, just do some fast walking or something else during that part of the video to keep your pulse rate up. Cardio burns more calories than strength training but stregth training builds muscles and muscles burn more calories than fat. so the stronger you are the more calories your body uses at rest.

Congratulation on your commitment to a healthy lifestyle!
Christy