Led by “The Biggest Loser” trainers, it’s a varied medley of calorie-blasting aerobic exercises. The programmable DVD lets you play any segment in any order. Or, you can choose one of the three progressively more challenging premixes (e.g. a 30-minute Level 1 program or a 50-minute level 3 workout). Bob Harper’s boot camp segment features overhead arms and lots of full-body moves (it even includes optional dumbbells to boost intensity). Then it’s Jillian Michaels’ high-intensity, sports/athletic drills. Finally, Kim Lyons maximizes the fat-burning with non-stop kickboxing routines. You’re sure to be motivated by the trainers and by the exercisers — successful TV show contestants from seasons 3 and 4. DVD has: 3 premixes (30 to 50-min. alternate workouts), Programmable chapters, Music only option, Region 1.