This .NET library provides methods for generating, writing, and reading IRD files. Functionality is provided for deterministically generating IRDs such that a redump ISO and key have a 1-to-1 correspondence with an unique IRD file.

How to use LibIRD

Reproducible, redump-style IRDs

The standard way of generating a reproducible, redump-style IRD with LibIRD is with a redump ISO file and a redump key file (e.g. http://redump.org/disc/28721/key/):

byte[] discKey = File.ReadAllBytes("./game.key");
IRD ird = new ReIRD("./game.iso", discKey);

alternatively, the disc key can be extracted from a ManaGunZ .getkey.log file:

IRD ird = new ReIRD("./game.iso", "./game.getkey.log");

Custom IRDs

Functionality is also provided for creating custom IRDs, with whatever data you want. One way is to use an ISO with a custom disc key, disc ID, and PIC:

byte[] discKey = new byte[16];
byte[] discID = new byte[16];
byte[] PIC = new byte[115];
// Set vars to desired values
IRD ird = new IRD("./game.iso", discKey, discID, discPIC);

As before, a ManaGunZ log file can also be used with an ISO to create an IRD, with the disc key, disc ID, and PIC all being extracted from the .getkey.log file.

IRD ird = new IRD("./game.iso", "./game.getkey.log");

Finally, an existing IRD file can be read to create an IRD:

IRD ird = IRD.Read("./game.ird")

An IRD can be then be tweaked, its fields printed, and written to a new IRD:

ird.UID = 0x9F1A51D8;
ird.Print();
ird.Write("game2.ird");