A (GD-ROM Disc Image) is a raw, 1:1 disc image format for the Sega Dreamcast , designed to preserve the full data structure of a GD-ROM (Gigabyte Disc Read-Only Memory).
A (GD-ROM Disc Image) is a raw, 1:1 disc image format for the Sega Dreamcast , designed to preserve the full data structure of a GD-ROM (Gigabyte Disc Read-Only Memory).