[badkungfu]

I always thought calling it MDMA denoted more purity vs Ecstasy, but I was never a candy kid.

[diggan]

MDMA being the substance, Ecstacy being the delivery, you could simplify it as. Ecstacy always have MDMA in it, but typically also other stuff. MDMA is just MDMA, and in itself have different purity depending on how it was made.