After doing some reading and testing some setups I’ve found out what is killing my Live TV. It’s the new MKV files built with MKVtoolnix 4.2.0 and most likely the mkvmerge part. These files are either a new standard or unstandard and the Live TV player really doesn’t like them.
Here’s what I’ve found. If I start my LT and chose a video file it will happily play. But if I try to play a new MKV, or even highlight it enough for the preview to try and start it kills the system. If I try and play the MKV I get the spinning ring and after 3 minutes I got feed up and the only thing that works is Back. The trouble is now all video files won’t play. To get them back I had to hard reset my LT. My guess is the new files put the decoder in a state that it doesn’t naturally recover from.
So easy fix is reset your machine and stay away from the new file type until WD give us a new firmware. Hard fix, if you really must watch that file, download MKVtoolnix, start the mkvmerge GUI, load your file, then highlight the the video track, from the extra options tab change the compression to none. Then highlight the audio track and do the same. You can now start muxing. It will take 2 minute to ??? depending on your PC and processor.
This last part is also usefull if your using the old player without DTS support and using the great MKV2VOB. If you feed a new style MKV in MKV2VOB will crash, do the toolnix thing first and it will work.
Hope this solves some peoples problems as it drove me wild.