Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Low quality videos that are mostly not even cardio!

I got this set for free - thankfully since the quality on these DVDs is generally so bad I can't imagine paying for it. Grainy film quality, blurry instructors, and in Martial Fusion the instructore actually manages to go off the green screen and have parts of his body dissappear.The Martial Fusion and Step are the only true cardio workouts here, and they are moderate workouts at best. This appears to have been cobbled together in a sad attempt to make more money without putting in much effort. Skip it, there are much better workout DVDs out there.