Am I logging DDR correctly?

Hi there. I was working out by playing Dance Dance Revolution every day back when I first joined MFP. Then I took a little break but now I want to get back into playing. Before when I logged it, I was logging it as step aerobics. That's pretty much what it is, right? I didn't want to log it as dancing because with dancing you move your whole body more, with DDR you are just doing a lot of stepping in rhythm :P I'd also log it for a little less time than I actually played because I know MFP can overestimate.

Does anyone else play DDR and is this how you logged it? Do you have any suggestions of how to log it more accurately?

Also, I know DDR has a "workout mode" that tells you how many calories you burn, but from what I've heard it's not very accurate, so I don't want to use that.