Can't "play" a video_ts folder

[andrew]

I really hope I am not missing something really stupid here but I probably am. I am a newbie to xbian but not to linux in general. So I have setup my pi with xbian an so far just played music and wanted to be able to play my video collection as well. It's on a nfs mount (just like the music collection) and every file type plays fine so far (avi's mostly) except videos in a VIDEO_TS folder. XBian recognizes the show and pulls down all of the data and displays the cover and everything in the GUI. If open the VIDEO_TS.IFO file it would play only the beginning of a few titles and then go black. If I push play on the library page (where it shows the video and a picture of the cover) it goes black immediately. I get no sound but I can exit and navigate the xbmc GUI. I have purchased and installed the MPG2 and WVC1 codecs, can't find anything in syslog (is there another log I can check?) and am at a loss.

root@xbian:/var/log# vcgencmd codec_enabled WVC1
WVC1=enabled
root@xbian:/var/log# vcgencmd codec_enabled MPG2
MPG2=enabled

Thanks for your help,
Andrew