Hi!
Step Max, Step Jam, Step Heat. These are step cardio workouts with some of Cathe's more basic choreography, but still intense cardiovascularly. These are usually recommended to start with.
Mega Step Blast: ditto the above
The Wedding Video: ditto the above, but after the cardio section there is a beginner/intermediate strength workout using dumbells, working upper and lower body
Power Max: a powerful step workout, slightly more complex choreography and more intense than those above
Step Fit: again, a faster paced, more choreographically challenging step workout
Step Works: one of Cathe's most complex step tapes, very fun choreography
BodyMax: First section: step workout, quite fast paced, medium complexity as far as choreography goes. Second section: Step sections circuited with leg work using a barbell. Very high intensity. Third section: upper body work, fast paced, endurance stuff. Then abs. This is a very tough workout!
MIC: very high impact hi-lo workout followed by intense step routine which includes a few intervals on the step. Considered one of her hardest--a love it or hate it deal. The choeography is moderate.
Imax: an intense interval workout on the step, alternating not-too-complex-choreoraphically cardio segments (but still intense!) with very high intensity powerful moves on and off the step.
Rhythmic Step: Probably Cathe's most complicated choreography. Very fun step workout.
Cardio Kicks: a Cathe style kickbox workout, all cardio. Can be modified to lower impact in some areas. No abs.
Circuit Max: alternates cardio (step, kickbox and HI-lo) with weight work for upper and lower body. The cardio is very high impact and hard to modify if needed. This is an exhausting tape! You probably wouldn't build much strength with this, it is more of an endurance cardio workout--most don't consider it a weight workout.
CTX series: per tape:half hour cardios, (either a mixture of kickbox, step, hi-lo or all step). Each cardio segment is followed by 10-15 minutes of endurance weight work using dumbells and a barbell. One body part per tape. Ab work is include on most, if not all of these tapes.
Leaner Legs: included in the CTX series, this one contains no cardio. It is an endurance workout for your legs using a barbell and dumbells. Ab work too. TOUGH!
Pure Strength: Kind of a combination of strength and endurance, broken up into back/biceps/abs, chest/shoulders/triceps, and legs/abs. Uses barbell and dumbells. Great form pointers of course. More emphasis on strength than endurance (?)
MIS: Also a combination of endurance and strength, a slightly faster pace than PS. This one is a total body workout,but can be split by doing the leg segment one day and the upper body segment on another day. Uses barbell and dumbells.
Power Hour: a total body endurance workout uisng barbell and dumbells. HIGH repetitions using medium to light weights. (Similar in style to Leaner Legs, but for your whole body) Unless you have the DVD, it is more difficult to break this into upper body and lower body days, because the lower body work is interspersed. Faster and lighter than MIS (?)
Slow and Heavy series: Considered a strength workout, this one uses heavier weights, 8 repeptitions of each exercise for 3 sets. Broken up into a push-pull method (triceps with biceps, chest with back, shoulders with legs) Very slow, lots of rest between sets. Great for form pointers. Uses mostly dumbells for upper body. Includes ab/plank work.
Intensity Series:
Imax II: cardio on the step, alternated with high intensity blasts of cardio on and off the step. Not as intense as Imax I. Actually pretty fun!
Muscle Endurance: Weight work to gain endurance using barbells and dumbells. Power Hour's cousin
Or sister.
Cardio and weights: a much easier version of Circuit Max, uses only dumbells. Fun step choreography only. Also wouldn't be considered a true strength training workout.
Boot Camp: can't comment--havent' done it, but I would say it's just an overall everything workout! Uses weights for upper body, has high intensity cardio sections, works your core to the core!
Pyramid Upper and Lower Body: I'm still not sure if these would be strength or endurance weight workouts. Due to the extremely high number of repetitions in these tapes, I would lean toward endurance. You can go heavier and just pyramid up or down and maybe call it strength.
These are just my perceptions of Cathe's workouts. I may be wrong... Did I miss anything?!
Hope that helps a bit...