DexDrive format:https://github.com/ShendoXT/memcardrex/blob/master/MemcardRex/ps1card.cs Signing a PSP .VMP file:https://github.com/dots-tb/vita-mcr2vmp PS3 format:https://psdevwiki.com/ps3/PS1_Savedata#PS1_Single_Save_.3F_.28.PSV.29 ...