Ok, the current version is functioning fine. Whatever was disagreeing with my computer is now fixed. It processed the 1642 image, 173 mb archive fine (apparently, if the lrf file has limitations, they're far larger than thought).
As an aside, the Calibre lrf viewer cannot handle files longer than 996 pages. Anything longer gets truncated. However, they still function fine on a PRS-505.
Before someone asks, I'm converting webcomic archives. I read quite a few webcomics, and the ability to put them on the PRS-505 has made the device far more enjoyable for me.
I just wanted to say thank you for ComicLRF.