While GDI is the most "pure" format, the community often recommends for general use:
Think of CDI as an MP3 file (compressed, convenient, but missing nuance) and GDI as a WAV or FLAC file (lossless, massive, but perfect). For the archivist, only GDI will do. dreamcast roms gdi
Unlike a single .iso or .cdi file, a GDI "ROM" is actually a collection of several files working together: While GDI is the most "pure" format, the