To answer my own question, the README for Freepsxboot was updated to explain that the app "Memory Card Annihilator v2.0" can do this.Does anyone know if there is a homebrew application for PS2 that I can use to prep a PlayStation memory card for this exploit? Using an Arduino to program the memory card seems excessive so I'm curious if there's an easier way.
After testing it, I can say it works. You must change the file extension of the .mcd file to .mcr, then Memory Card Annihilator will recognize it and you can restore it to the memory card.
Last edited by AkikoKumagara,