I wasted $25 with shipping on a non tested non working one a couple years ago, and longed to play Turbo and Dukes of Hazzard. I decided that I would not waste that large a sum again on an untested one. Lo and behold, I sniped an ebay auction and got one for $10 plus $5 shipping and it works like a charm. I am pumped.
Can anyone provide a complete list of CV games that use EM2?