I have never had to add or learn about adding subtitles in the 4 years of creating DivX backups.
When watching an English film, and when a particular scene would have a foreigner that would speak a different language, there would be English subs. I did nothing different then any of my other rips. The subs that were "in" the movie have never had to have any special processes to keep them. I always thought vobsub was for adding a particular subtitle in your language for the entire movie.

Well, when I ripped a older movie, Red Dawn, the "in" movie subs are not being shown. I spent several hours jumping around many of doom9's vobsub guides, and have not found any that I understand for my situation.

Could someone please tell me what I'm dealing with and possibly a specific guide that I should use?

Thanks for any help.