SDLOAD is an SD (Secure Digital) card / Action Replay bootloader. With just an Action Replay (ANY revision works fine) and an SD card adapter for your GameCube, you can be booting code from the SD card or even your PC network within seconds! It takes around 10 to 15 seconds from the time you turn on your GC to the time you can have homebrew code running on it.http://www.gcdev.com/