Install submux-dvd by entering the following commands in the terminal:
sudo apt update sudo apt install submux-dvd
Description:
subtitle multiplexer, muxes subtitles into .vob
Based on original 'submux' for CVD and SVCD by unknown author, changed for DVD muxing and coding support (use only DVD!). This accepts xste .sub output.
Homepage: http://panteltje.com/panteltje/dvd/
Version: 0.5.2-0ubuntu2
Section: multiverse/utils