GD-ROM Dumping Guide: Difference between revisions

Revision as of 03:50, 19 February 2026

GD-ROM dumping guide. See here for information about dumping GD-R (recordable) discs.

GD discs were used by the Sega Dreamcast console and Sega NAOMI, Sega NAOMI 2, Sega Chihiro, and Triforce arcade systems.

The discs contain two distinct areas, a Low Density Area ("LD Area") and a High Density Area ("HD Area"), physically separated by a ring. You'll need to dump both areas of the disc, each requiring different drive models and methods.

LD Area

Tools

CD-ROM compatible drive
Windows, Linux, or macOS computer
MPF application (includes Redumper)

Dumping

The LD Area is formatted like a standard CD-ROM, so should be dumped using the standard Disc Dumping Guide (MPF). The CD-ROM profile should be selected in MPF.

HD Area

Tools

An optical drive listed in Optical Disc Drive Compatibility: GD-ROM
Windows or Linux computer
dreamdump app

Dumping

Open command line interface app
cd (change directory) to the location of the dreamdump app.
Dump with the following command: dreamdump disc --drive="[drive letter]" --image-name=""

@@ Line 13: / Line 13: @@
 '''Dumping'''
-The LD Area is formatted like a standard CD-ROM, so should be dumped using the standard [[Disc Dumping Guide (MPF)]] with a CD-ROM compatible drive. The CD-ROM profile should be selected in MPF.
+The LD Area is formatted like a standard CD-ROM, so should be dumped using the standard [[Disc Dumping Guide (MPF)]]. The CD-ROM profile should be selected in MPF.
 ==HD Area==