roughsketch/mdgcm

Command line extractor and builder for GameCube GCM discs.

mdgcm

The purpose of this tool is to make it easier to extract and build GCM discs with command line tools. Although GCM discs technically should always be a fixed size, this program as it stands will leave as little free space as possible. This means re-built discs can be anywhere from 200MB to the full 1.4GB.

Commands

To extract all the files from the disc into a directory:

extract disc.gcm output/directory/path

To build a disc you must pass in a directory that has had the contents of the disc extracted to it previously. If it detects missing files or improper structure it will not build anything.

build previously/extracted/directory output.gcm

Files will simply list the contents of the disc to the console.

files disc.gcm

Aliases

For convinience there are single letter aliases for all the commands.

Command	Alias
extract	e
build	b
files	f