So, I have a near-complete (if not complete) NES Romset, and I know every Rom works, as I used to play them all the time with Nestopia on my various macs (currently they are all at 1.4.1) yet, if I try to use them with ANYTHING else (most importantly Nestopia on my new Netbook, which is my main computer), I get an "Invalid File" error. Does anybody have any sort of idea of what is causing this, and how I may fix it?