Using 12.7.4, DOpus does better than Windows 10 (Pro x64):
Same nine MKV video files, DOpus can get the dimensions and a legible FOURCC, Windows can't.
The videos that don't show a Bit Rate in DOpus, show as 0kbps in Windows - same files give the same result on three other reasonably standard Windows 10 (Pro x86) installs.
MKV Framerate is also displayed in DOpus OK.
I have no extra splitters/codecs installed other than MagicYUV, Lagarith, (both lossless codecs), and proDAD (effects in an NLE).