Replying to M4V TRANSFER HELP!!!

So i just bought Pop Yer Bottlez off iTunes for $2.  However, I don't have an ipod, i have a Creative Zen Vision M.  So it doesnt support the file, so i tried to convert it, but it is DRM protected.

So, what I am asking is: what programs do you use or how do you get videos off of itunes onto other types of mp3 that do not support mv4 format?!

(and yes, i also posted this in media and arts, but it will be seen more here, so i put it here too)