On a related note, does anyone have any experience connecting a generic floppy emulator to an 8250? Are any power or signal-related mods needed, or will the default power and floppy cables from the 8250 just work?
I have used the Lotharek SDcard floppy emulator rev C on my NMS8255. It works without any additional modifications to the NMS8255. I don't know about other floppy emulators, but I'd presume if they follow the same standard (Shugart), they should work. You can even put PC floppy drives inside an NMS8250/55/80 (with very little modifications - IIRC, for HD floppy detection, in case you are using a HD drive, since the MSX can only handle DD drives / floppies, and slave/master selection).
The Lotharek has it's own quirks - for example, it uses it's own file format (no .dsk loading from the SD card!) which will mean constant file conversion. Also, it is not cheap. But, MFRSCC+SD still offers more value (HD emulation FTW!) - except that a floppy emulator will not take up a slot. YMMV - If you can get a cheap floppy emulator, it might be worthwhile, even in addition to the MFRSCC+SD!
