The legality of Dreamcast ROMs is a complex issue. While ROMs themselves are not necessarily illegal, downloading or distributing copyrighted game content without permission is against the law. To stay on the safe side, consider only downloading ROMs for games that you own or have purchased.
Here’s a useful, focused review of —specifically for exclusive games—covering what works, what doesn’t, and practical recommendations. dreamcast roms highly compressed exclusive
Known for its massive roster, not its file size. Highly compressible. The legality of Dreamcast ROMs is a complex issue