It sounds like you don't know the systems you are trying to emulate . . . you probably should look up some stuff about the genesis/megadrive (same thing, different name depending on where you live) and find some good games for it (probably start off with sonic games, and for an rpg try phantasy star iv or the shining series). Then "acquire" roms of these games, and then follow the instructions for the placement of roms. Also, you should zip your roms for DrMD.
Well, you happen to be right, as far as Sega systems are concerned. I was pretty much out of the console loop by the time Sega was big. But still, with all the different names, physical consoles, plus add-ons, second- and thirg-generation systems, the whole Sega legacy is rather convoluted, you must admit. It makes the NES/SuperFamicom naming standard look quaint by comparison.
Also, I thought DrMD roms should be *unzipped*? Says so in the docs, it will only find the first zipped rom, or something like that.
Actually things are going more smoothly with the Sega systems for me now. There's just the issue of non-working NeoGeo because of rom-size isues.
BTW, does anyone know what the folder should be names in DrMD to put GameGear roms into? Yet another undocumented feature!