DVD Rip Using DVDfab and Handbrake
Complete Process Guide
Subtitles: forced only, burned in, default
Whether you choose "burned in" or not depends on the container. With MP4, you have no choice (the subs will be burned in), with MKV, it's up to you to decide whether you want soft subs (not burned in) or if you prefer the subs burned in the video.
When encoding, go into the subtitles section, select English from the list and then tick all three boxes next to it "Forced Only", "Burned Inn" and "Default". This will burn subtitles for foreign audio into your movie.
Audio Settings
The software seems to be missing a "dynamic range compression" and/or "normalize."
Normalize makes the audio peak 1.0dB and adjusts the volume across the board to slide it "up" or "down" to reach that peak. Relative volume between scenes will still vary widely - soft will still be soft, loud will still be loud, but the overall volume will be louder.
Dynamic range compression makes loud sounds softer and soft sounds louder, "flattening" the volume somewhat across the entire rip.