[HELP] Rename tracks help please and help with chapters

[Selur]

And here is one of the restrictions of mp4:
It does not support .srt, .ass and .pgs subtitles.
It does only support ttxt and idx/sub. And support die those two is also rather sparse in players.
So to keep content compatible Hybrid converts srt to ttxt (removing formating iirc).
As aside note: the inital srt specification also does not support HTML styling tags.
If you want styled subtitles with mp4 you can:
a. embed/hardcode the subtitles
b. convert the subtitles to idx/sub
c. place the subtitles next to the file in a separate File.

Cu Selur