A welcome change! Thank you all for for considering, discussing, and implementing 
Please allow me to apologize for having replied somewhat harshly to your original post, by the way. At least one of the problems where I didn't have an easy solution did turn out to have one.
Did you ever figure out what the cmj34.zip was?
No worries at all. I can have a big mouth sometimes if I think I see something happening that I think is inefficient or ineffective. Since I'm not a frequent poster here, maybe I could have eased into the discussion a bit better.
cmj34.zip was just an example I concocted, not a specific filename. But your first guess was basically correct, I had just finished sorting Captain Marvel Jr, and one of the files was named similarly.
