This Chiseled Workout Series 16 contains 16 workout shows, enough for an entire month! Since the shows were filmed daily and "live", no workout is ever exactly the same. The days for the stale old workout DVD are over. Series 16 is designed to work each muscle group once a week and trust us that will be plenty. Just when your muscles are healed and no loner sore - you train them again and build your progress. You don't need to own the previous series to benefit from this workout program.