Thank you very much for the clarifications, BetterRed. Mobicreator has worked for three files so far and I will bookmark this thread in case it fails in the future so I have other options to fall back on. I greatly appreciate the help, especially since the answer was sort of indicated at in an FAQ. Guess I just needed more of a step-by-step.
I hate smileys as a general rule but these guys convey my appreciation well enough to make an exception.