These patents look really interresting... However, is Mitsumi the same company as Matsushita (panasonic) ? IT was matsushita who developes the disc.. not sure about mitsumi.
If it finally is the GamecubeDisc.. then it would be a very useful information in oder to override the Barcode...
Another thing... it is kind of a rumor that gamecube discs are written in reverse.. Any link confirming it? If burned mini-dvd-r dont work.. it could be easy to make a program that "inverts" de image, and burn it inverted, imitating the process of burning it from the outside in. If anyone with DVD burner let it know here, to try these several possibilites