I've tried AVPlayerHD, PlayerXtreme & Infuse. I cant find any video app in the store that will play MKV/x264 videos with DTS audio. I have to convert the DTS to AC-3 for it to play. I was able to use to Infuse tonight to play a 1080p video but I used an app to conver the DTS to AC-3 before hand. Anyone have anything that will play MKV with DTS audio? Btw, I'm on iPad Air.