Check for the GD-ROM logo on the disc or check the reflective side of the disc for a visible LD/HD Area divide if you are unsure.įirst you need to make sure you have the necessary equipment.
The Dreamcast did however support loading of MIL-CDs, which lead to a number of unlicensed software being pressed on regular CD-Roms. If you have any of the officially released discs for the Dreamcast or any of the above mentioned arcade systems, you are pretty much guaranteed to have a GD. To get a good dump, you need to extract both Areas from the disc. The disc contains two distinct areas, a Low Density (LD) Area and a High Density (HD) Area, physically separated by a ring. GDs (Gigadiscs) are the type of optical media used by the Sega Dreamcast as well as the Sega NAOMI, Sega NAOMI 2, Sega Chihiro and Triforce arcade systems.
