So I have a western digital 1TB HD with genesis and snes roms on it. Problem is, when I use my snes emulator and selected usb mass storage device it says none is attached. When I use my genesis emulator and go to USB it keeps going to the SD card. I know that my HD works because I have media files on it that I use with WiiMC and it recognizes the drive no problem. Any one know what is going on?