I love the new modern solutions to keep our old machines running. GDemu is such a device. It replaces the GD drive on your DreamCast and enables you to use an SD card instead. Information:https://retrogamesultra.com/2019/02/17/sega-dreamcast-gdemu-installation-and-setup/https://www.reddit.com/r/dreamcast/comments/ao38wq/sd_card_maker_for_gdemu_110_by_madsheep/