for Dreamcast exclusives. “Highly compressed” beyond CHD introduces too many issues, especially for games that rely on streaming (Shenmue, Skies of Arcadia). If you’re tight on space, drop non-exclusives first—most of the best Dreamcast games are on other platforms anyway. For true exclusives, respect the original disc size and use CHD.
: These were historically created to fit 1.1GB games onto standard 700MB CD-Rs. This often involved "exclusive" hacks like downsampling audio, removing textures, or cutting videos, leading to an inferior experience compared to modern formats. Technical Methods for Compression dreamcast roms highly compressed exclusive