Thank you for the information! It looks like more work than I'm willing to put into it right now, but I'll keep this in mind when I'm feeling adventurous.
I'm glad you mentioned CR3 for the desktop! I didn't realize there was a desktop application, but that would make it so much easier! I had been trying to find a file type that I liked, so I would just convert my book to several different formats, then load them all onto my Pocket Pro and see which one I liked best, then deleted the others... seeing them on my computer would be so much easier!