GD-ROM Dumping Guide

From Redump Wiki

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 disc 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

• GD-ROM compatible disc drive
• 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=""