I don't think any media player can
legally get past the encoding used on protected DVD media such as you described. Maybe you should contact the manufacturer of the DVD media and ask
them how you could copy the media to your Zune player.
There are other legal ways, yet require special hardware for playback/recording. AFAIK there is no easy & free software that can do this. Soundtaxi is often referred by others, although I have no personal experience on its use.
Didgeridoo, Ethnic, Medieval, New Age, Tribal
Don't Throw A Fit, Throw a Boomerang!