If you're even THINKING about TRADING with this us
I recently purchased an HGA from GWtrading. I'm very happy with my purchase and satisfied with the picture quality I'm receiving. I have an Old style MVS 1 slot with the joystick ports and I bought the memory card reader separate also. Anyways the point for this post is to let you know that when you have your memory card inserted and you use the test mode switch on the MVS nothing happens to the memory card, but when you use the test mode switch on the HGA with the your memory card inserted it'll clear all of the data from it.