Editing PSU

The PSU file format is an archive format used by PS2 save data management tools like uLaunchELF and mymcplus.

= Usage =

== Obtaining a PSU file ==

=== From an actual PS2 ===

By running uLaunchELF on an actual PS2, one can export PSU files from the PS2 Memory Card to USB or network.

=== From a PS2 emulator ===

PCSX2 stores the PS2 savedata in a virtual memory card file whose extension is .mcd. Each per-game savedata contained in the MCD file can be extracted to a PSU file by using mymcplus tool for example.

== Extracting a PSU file ==

The best way to extract a PSU file would be to use pypsu by McCaulay if it was not bugged (for example on Jak X: "[-] month must be in 1..12", and on games that have a filename identical as the folder name, cannot export that file).
* [https://github.com/McCaulay/pypsu pypsu python library by McCaulay (2023-01-27)]
A GUI tool for PSU file edition is
* [https://www.psx-place.com/threads/ps2-save-builder-by-vector.19057/ PS2 Save Builder v0.8 by Vector (2003-2004)]
So the current workaround is to convert PSU to another savedata format. For example, you can use
* [https://github.com/bucanero/psv-save-converter psv-save-converter by bucanero]
In the past there was a tool named psutools (link requires registration, to mirror)
* [https://www.psxdev.net/forum/viewtopic.php?t=1025 psutools in FreeBASIC with source code by LameGuy64 (2016-07-02)]
A good tool might finally be
* [https://github.com/root670/PS2SaveUtility PS2 Save Utility by root670 (2018-09-22)]

= Structure =

* [https://www.ps2savetools.com/documents/ps2-save-game-format-for-ems-adapter-psu/ PSU file format description by gothi (2013-01-19)]

= See also =

* http://www.hkems.com/product/ps2/ps2-mem.htm
* http://www.hkems.com/product/ps2/ps2%20usb.htm