29
edits
Changes
Jump to navigation
Jump to search
Added Physical Layout Format and BCA Format, Disc Scramble Info
Line 5:
Line 5:
The GameCube and Wii check for these marks on disc boot by checking for null regions. Homebrew discs can therefore identify as Wii discs by nulling out these regions through software, although some software may need modification to avoid warning messages. [[Freeloader]] exploited this to not require a [[drivechip]].
The GameCube and Wii check for these marks on disc boot by checking for null regions. Homebrew discs can therefore identify as Wii discs by nulling out these regions through software, although some software may need modification to avoid warning messages. [[Freeloader]] exploited this to not require a [[drivechip]].
+
+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 ==
+ // 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 Total Bytes
+
+== Disc Physical Format ==
+ // Leadin Area
+ PhysicalFormatInfo m_pfi;
+ DiscManufacturingInfo m_dmi;
+
+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];
+
+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];
+
+DataAreaAllocation
+ u8 reversed;
+ u16 startSector; // 196608
+ u8 reversed2;
+ u16 endSector; // 909487
+ u8 reversed3[3];
+ // 12 Bytes
== "System Area" ==
== "System Area" ==