yes, it's worth it
as lorrayne wrote (hi lorrayne!) previously, CS 1 is a compilation of parts taken from super sculpting and super cardio. it is divided into two segments, upper body and lower body. there are three cycles in each segment, one cardio followed by one strength exercise. you can break the tape up, doing one segment one day and the other on another day. or you can do both on the same day. i'd rather do both on the same day since the tape is only 50 minutes in length.
i like to do this tape on a cardio day or when i really don't want to go heavy or long on a strength workout. CS 1 is definitely an endurance workout. i received my copy through the exchange, but if the tape costs ~$20, it's worth every penny IMHO.