mglae - Thank you very much for your response, and sorry for the delay in my response. I was just brainstorming the issue yesterday and today. It seems like the NFO files for at least 7 music videos were creating the problem. I had to re-scrape them all with TMM 4.0, which was kind of strange, considering I used TMM 3.5.x to scrape them previously. I couldn't narrow down specifically what exactly caused the problem, but since the re-scrape, all seems to be working as it should.
Thanks again,
Shedrock