You can't buy these currently. There is a newer one that uses USB, but it's just under 200 dollars smh. The guy makes them (and the same thing for 3DO) himself in small batches by hand, so he can't discount.Yep, what you want to look into is gdemu, it replaces the laser reader in the dreamcast for a SD card slot. And its dogshyt simple to install, literally just a swap of the unit with no soldiering required.