MEDIAGATE MG-800HD Digital Set-Top Box

Plays most DVD rips

This has the potential to be a great product because of the wide range of files it's able to play, but it was released too early.

It can play .mkv

This unit should stay in beta test and not rush to public use as yet. Still many bugs and poor performance. Way far ahead of what its spec say it can do. I have one and regret that I purchase it too early.