Just bought myself one of these beasties on special the other day and it goes well with our new telly!  Having previously come from WDTV Live I find this new unit really finicky when it comes to DLNA media servers. I tried TVersity with no luck, PS3 Media Server with a little bit of luck, and finally got TVMOBiLi going. I haven't tried all the file types yet but at least it can play the common ones.

Has anyone got this Sony unit or ones like it? If so, what media servers do you use to stream stuff, if you use any at all?

Cheers,
D.