I have a Demuxed DVD which I would like to backup and add subtitles to: *.m2v & *.mpa files. I also have a *.SUP subtitles which I want to add to make the final DVD. What is the best approach? (I've already checked the guides and yes they do work but were very cumbersome and tedious. I would like to know a better method). Thanks in advance.

On a side-note, is there any program that will allow you to author the mpeg-2 files (i.e. to make menus) and to incorporate the *.sup file at the same time.