Yes it means no dvd but the movie is on the website for watch whenever you want to watch it. i think its to help not make clutter with a bunch of dvds but im not sure. My sister does the vudu thing i prefer the actual discs to own.
Basically there is this website called vudu.com and you get ultraviolet copies of movies that you put on the website and you get to watch the movie on your devices such as laptop, tablet, ect without having to watch on a dvd at home. Does that make more sense? I hope that helped
Vudu and Disney codes are put in to their websites. You then own the movies. You can watch them as many times as you want. You can watch then on your computer, on your smart phone, it on a tablet. You can stream the movies (watch running over the internet) or download the movies for later viewing. I personally prefer this form since discs can get damaged, lost or stolen.