Comment # 5 on bug 1172117 from Dr. Werner Fink

(In reply to Luigi Baldoni from comment #4)
> @Dr. Werner Fink,
> could you please try version 47.0.0?
> Also it would still be useful to know if the test file is encrypted or not.

As the file command return data instead of a MPEG data / Transport Stream nor
the file starts with the usual zero bytes it seems to be encrypted.  Is there a
way to enforce  mkvmerge to use the keys located in ~/.config/aacs/KEYDB.cfg as
vlc and ffmpeg does ...