I download movies from Vongo and play them with my Dlink DSM520 without any problems. Actually works pretty well and Vongo lets you keep the movies for more then 24 hours unlike some of the other services.
I am sharing the Vongo folder on my Vista machine and letting WMP be the media server.
Everything seems to work well except being able to fast forward to a point in the movie to continue watching it a later time.
The resume function doesn't seem to work either.
Any ideas?