I agree, I hate the leech scumbags who try to sell CDRs of Neo ROMs. Its fine if people download the ROMs from the web for free, I mean playing the emulated version doesn't equal 1/2 of the real game anyway. It gives some people a chance to play the game at least, and its not the real thing at all.
I've seen some leech pirates trying to sell CDRs on eBay. Every time, I report them, and I'm glad to say that every time eBay kills the auction. And in a few cases, I've emailed the seller directly (especially if he has a high feedback rating) and warned him not to ruin his rating with pirated crap. That seems to work pretty well, too.
MS3 is a fantastic game. I just hope someone (obviously not SNK anymore) picks up the rights to port it over to the DC, so more people can enjoy this fantastic game.