How can I open the videos of Xeoma In my Lumia 800 Phone

[ebros]

I have a problem. I can´t open Xeoma video files (mjpeg,wmv,mp4), which are in my Ubuntu One cloud, with my Nokia Lumia 800 windows phone. I get error: Windows phone don´t support this file form. I have also another program, which gives the same video formats (mjpeg,wmv,mp4) and Lumia can open these. I don´t understand why not Xeoma files!