Unlike modern consoles, the Dreamcast used a proprietary format called , which held roughly 1GB of data. Because standard CD-Rs only hold 700MB, release groups in the early 2000s (like KALiSTO and Echelon) developed ways to "rip" these games.
: 1:1 exact replicas of original 1GB GD-ROM discs, primarily used for emulators or Optical Disc Emulators (ODEs). sega dreamcast cdi archive
CDI files require specific burning software. You have two modern options: Unlike modern consoles, the Dreamcast used a proprietary
Hackers discovered that the console could be tricked into booting game data from a standard CD-R if it was formatted using the MIL-CD structure. Unlike modern consoles