I know, "Just use DVD Shrink". I've managed to fill an entire DVD with clips from several different mini DVDs using DVD Shrink and then burning one off, but only the first movie plays --- the rest just take up space on the disk.

I've read all I could find for the past couple of weeks, but it still hasn't addressed my basic problem: I need to get a grip on how to manually manipulate and group these cryptic, all-the-same-name DVD files and "author" them outside of any authoring software. Is it possible?