GuestLog in

Utility description

For both PS2 and PSP ISOs, this is a command line application for replacing files in either system's ISOs. Derived and inspired by the original UMDReplace, this version was rewritten in C# and .NET 6 specifically for patching a visual novel but works for any PSP ISO or single layer PS2 ISO. The main benefits of this tool compared with its competitors is that it is open source, cross platform (thanks to running on .NET 6), lightning fast, and can receive a list of files to replace, hundreds long and more through a batch text file with instructions.

Source Code and license is available on the author's Github page and .NET 6 is required to run the tool.