After some research I'll say it's correct but I'm inclined to say no because it's just so dumb and clearly a misromanization.
Posted under General
If you're going to go with the original Japanese version, then it's just Medarot - no plural. It's given in English in the show's opening (see http://www.youtube.com/watch?v=817Tgf3-g8w ), and the logo is the same for at least the third anime series, Medarot Damashii.