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GCMTools are a suite of tools to basically rip apart your gamecube gamesand put them back together however you wish. Its aim is to give you access toeverything so you can modify and hack your games to your wildest dreams.Currently, there are 5 executables that are part of this package: gcmtool- for auditing, extracting and editing Nintendo GameCube DVD images (.iso or .gcm). gcmdiskheadertool- once you've extracted the disk header, this tool lets you modify it. gcmdiskheaderinfotool- for modifying the diskheaderinfo gcmapploadertool- currently only allows you to view info about the apploader when there is a better understanding of the more...

What's New

Version 0.3.2:
  • [all] fixed a bug where the file would be opened as read/write even if we were only going to be reading (which would lead to permission denied errors on read-only files)
  • [all] improved hexadecimal value output
  • [all] for all unsigned 32-bit int commandline input, if you precede the value with "0x" the value will be interpreted as hex. (ie 0x0100 for 256)
  • [gcmbnrtool] fixed a more...


Mac OS X 10.0 or later

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Current Version (0.x)


Downloads 6,875
Version Downloads 5,512
License Free
Date 19 Jul 2004
Platform OS X / PPC 32
Price Free
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