hey there,
i'm trying to get pop'n music 3 and 4 working on my dreamcast. i bought a modded one with a gdemu (no clue if it's a clone or not) about 2 years ago and it's been working fine but when it comes to swapping discs i'm totally clueless. i keep seeing mention of a button which i've tried using in the disc swap menu of pop'n 2, but nothing happens. i've changed open_time and detect_time to 2000 and tried holding the button for longer and it still doesn't work. am i doing something wrong?