Hey Everyone, Anyone seen these before? http://page13.auctions.yahoo.co.jp/jp/auction/r57393507 Looks like a neat commercial copier device that you could have used to dupe games from a friend, without buying an expensive copier system.
That looks cool and would be interesting to know more about it. I would have to guess that it probably was for copying earlier games and not games with mappers or more than one particular mapper.
That "copier" was also sold stand-alone. It could only copy NROM (32K PRG, 8K CHR) cartridges, meaning it was crippled from the start. Blank cartridges are recognizable by round indentations on either side of the cart, so don't let anyone fool you into thinking they're protos or something.
I had one, w/o the coin mech. Some can also copy CNROM games. The carts just contain EPROMs. IIRC it just contained a little discrete logic.