Hi Mona,
Authoring method:
Original m2ts/mpls -> mkvtoolnix -> Add audio file(s), and subtitle file(s) (*.sup -> created: easy sup, or subtitle edit)
DVDFab UHD Creator -> Add mkv -> Create UHD BD.
But while all the subtitles in the mkv are perfect - both the original subtitle and that one I made - but the UHD BD is no constant, all the time freezes, and after that suddenly it will be quicker than the normal speed, etc.
I tried to add the subtitles only in the UHD creator program (Add external subtitle), so the subtitle works well, but it does not keep the formatting settings (italic style, position, font size, color, etc.) for * .srt, * .ass, * .ssa.
Yes, 1 or 2 things can be set, but unfortunately, it is nearly not the same result as at the original subtitle, and it is a bit complicated to set the position, for example.
(It would be advisable to replace the slider solution with a more accurate value base.)
