Right now, I'm mainly trying to figure out how to run PC-FX games on an emulator. I do also have Mednafen, but am somehow unable to get it to run at all. (No error message, even. Double-clicking that does absolutely nothing, but if there's a way to correct that, I'll listen to anyone who knows how.)
Also, in case Nintendo 64 emulation ever gets finished for it (that is, if the person who worked on it ever picks up on it again), this seems to be the only emulator that will display the facial features in Getter Love!! It *is* a big if, but in case it happens and a translation patch comes out for that game on ROMhacking.net.
As for system specifications, I have Windows Vista, and I downloaded the folder containing all the files it needs. Someone on the Rh.net forum helped me find said folder. OS info, though? Mind specifying what you mean by that? Do you mean "Operating System?"