the 72 pin connectors work well but you've got to clean your carts and the machine where the connector plugs into as well for the system to work like new. I've put many in that didn't clear up the problem at all until i started really cleaning everything. Sometimes a pink eraser and lots of time work and sometimes it's best to use a metal polish and denatured alcohol. Rubbing alcohol does work BUT it leaves a film when it dries, denatured alcohol is wonderful for contacts and plastics (cds, dvds, etc) and all you've gotta do is clean then let it dry. Buy a bit that takes the carts apart to where you can really get to the pins and polish the heck out of them, clean the board where the 72 pin connector goes and voila, blink free. Lots of times you can actually clean these and your old connector and get similar results.