Can't see video_ts files

Hi, hopefully this is an easy one top resolve. I am having trouble seeiing video content on my PC through my ATV. I have installed all the relevant software on my ATV and it all seems to work fine save for my not being able to view any of the video_ts files I have on my PC. I can map to the sharded drive no problem but the folder I keep my videos in appears empty on ATV.

I hope this makes sense.

Bobster