Zumba from before it was called that

I did a workout today with a DVD created and distributed by Prevention magazine. I'm not sure what year the DVD came out, but I think it was a while ago (I got it at a yard sale). Anyway, the concept of the workout is "dance yourself thin". It was a good, relatively low intensity (excellent for fat burning) workout. It reminded me of the Zumba class I took while at Massanutten on vacation, and I realized that essentially that's what it was: Zumba from before someone came up with (and began marketing) that name.