DVDFormat
GameCube Disc Format Please Note this is a work in progress doc
XOR Encryption is done using discID and a random seed by the Disc Controller Firmware, Panasonic MN103S
Random Seed List
0 0x0003 8 0x0030 1 0x7f00 9 0x7001 2 0x0006 A 0x0060 3 0x7e00 B 0x6003 4 0x000c C 0x00c0 5 0x7c00 D 0x4007 6 0x0018 E 0x0180 7 0x7800 F 0x000f
Burst Cutting Area
struct_root {
// UserData(64 Bytes) u8 optionalInfo[52]; u8 manufacturerCode[2]; u8 recorderDeviceCode[2]; u8 APMRecorderDeviceCode; u8 discManufactureDate[2]; u8 discManufactureTime[2]; u8 discNumber[3]; // KeyData(16 Bytes) u8 bcakey[8]; u8 bcaSerial[8]; // Encrypted(48 Bytes) u64 psn[6]; //BCA mark positions
}; // 188 Bytes
Disc Physical Format
// Leadin Area struct_root {
PhysicalFormatInfo m_pfi; DiscManufacturingInfo m_dmi;
};
struct_PhysicalFormatInfo {
u8 reversed[6]; u8 discMagic; // value is -1. u8 discSizeMinTransferRate; // The value is fixed on 16. u8 discStructure; // The value is fixed on 1. u8 recordedDensity; // The value is fixed on 1. DataAreaAllocation m_dataAreaAllocation; u8 reversed2[2026]; u8 reversed3[6];
};
struct_DiscManufacturingInfo {
u8 reversed[6]; u8 unknown1[6]; u8 randomNumber2[6]; u8 unknown2[6]; u8 randomNumber3[6]; char mediaId[19]; // "Nintendo Game Disk" u8 randomNumber4[6]; u8 bookTypePartVersion; // value must be 1. u8 discSizeMinReadoutRate; // The value is fixed on 16. u8 discStructure; // The value is fixed on 1. u8 recordedDensity; // The value is fixed on 0. DataAreaAllocation m_dataAreaAllocation; u8 bcaDescriptor; // The value is fixed on 128. u8 reversed2[1983]; u8 reversed3[6];
};
struct_DataAreaAllocation {
u8 reversed; u16 startSector; // 196608 u8 reversed2; u16 endSector; // 909487 u8 reversed3[3];
}; // 12 Bytes
Disc Image Format
struct_root {
BootHeader m_header; // boot.bin BootHeaderInfo m_bi; // bi2.bin AppLoader m_apploader; // appldr.img FileSystemTable m_fst; // fst.bin u8 userdata[0]; // application is stored here, including boot file
};
struct_BootHeader { u8 ConsoleID; // G = Gamecube, R = Wii. u8 Gamecode[2]; u8 CountryCode; //J=JAP . P=PAL . E=USA . D=OoT MasterQuest u8 MakerCode[2]; u8 DiscID; u8 Version; u8 AudioStreaming; //01 = Enable it. 00 = Don't u8 StreamBufSize; // For the AudioEnable. u8 unused_1[18]; u32 DVDMagicWord; // 3258163005 char GameName[64]; u8 unused_2[416]; u32 NKitMagicWord; u32 NKitVersion; u32 ImageCRC; u32 ForceCRC; u32 ImageSize; u32 JunkID; u8 unused_3[488]; u32 ApploaderSize; u32 ApploaderFunc1; u32 ApploaderFunc2; u32 ApploaderFunc3; u8 unused_4[16]; u32 DOLOffset; u32 FSTOffset; u32 FSTSize; u32 MaxFSTSize; u32 FSTAddress; u32 UserPos; u32 UserLength; u32 unused_5; };
struct_BootHeaderInfo { u32 DebugMonSize; u32 SimMemSize; u32 ArgOffset; u32 DebugFlag; u32 DebugOffset; u32 DebugSize; u32 RegionCode; u32 TotalDisc; u32 LongFileName; u32 PADSpec; u32 DOLLimit; u8 unused_6[8148]; }; // 8192 Bytes
struct_AppLoader {
char revision[16]; // Revision compile date (example "2001/12/17") u32 entryPoint; // Apploader's entrypoint u32 size; // Size of apploader code u32 rebootSize; // Size of reboot code u8 pad[4]; // zeroes u8 code[0]; // PPC code
};
struct_FileSystemTable {
u32 entityCount; FileSystemEntity* m_entity; StringTable* m_string;
};
struct_FileSystemEntity {
u8 flags; u16 filenameOffset; u32 fileOffset; u32 fileSize;
};
struct_StringTable {
char name[0]; char dummy;
};