This will be a great thread, in order to compile all different options and results !!
Yesterday I also ran a quick testing that I am not sure there are no references anywhere.
I used VLC wizard and converted a MKV trailer (x264 and AC3) to .TS
The result was playable on the 4100, but there was a small error in the video - perhaps more testing is required - I wonder why this is not considered as an option to be adjusted further.