I am currently trying to play a movie from Mezzmo on the Samsung Horizon Box, which was provided to me by the local cable TV provider Unitymedia.

The box is currently able to find the Mezzmo Server in my network. Also Mezzmo is able to find the Horizon Box in the network. Mezzmo sets the profile of the box to "Samsung C". I can browse through the movies whose are available through Mezzmo. I can show the mivie details. But - I am not able start the movie which is an mkv file (any other formats or container are also not playable). As Twonky Media Server works fine I consider that the profile "Samsung C" is not correct.

Could you tell me please which profile I should select so that the Horizon Box are able to play video files?

Thank you.