I've been trying to get XBMC to play my .nuv MythTV files wiith little success. I've heard of people that have had success doing this, however they all seem to have the WinTV-PVR cards that output native MPEG.
When I try and open the .nuv files, I get slow audio and no video. Within linux, mplayer can load these files, so as the XBMC is built around mplayer, this must be possible!!! Anyone???