Games that use mc2_s1.irx, specifically those that contain the string "PsIImc2_s1 3100", may very well corrupt any memory card that is in the same slot as a VMC. The version that comes with Mana Khemia and other Gust games directly accesses the SIO2 device rather then going through sio2man like they are supposed to. The mc2_s1.irx in Star Ocean 3 is okay as it's version 3.20 and contains "PsIImc2_s1 3010".

