Renderer profile for UE46EH5300 for .mkv files

Hi

Serviio newbie so please be gentle.

Have a couple of DVDs ripped by MakeMKV but neither will play on the TV.

Renderer profiles tried , serviio 1.3.1, are:-

Generic DLNA profile
Samsung TV(A-series)
Samsung TV(B-series)
Samsung TV/player (C/D/etc)

Any suggestions as to a solution, please?

TIA