: The DuckStation Emulator includes a built-in memory card manager that can handle various formats natively. Format Comparison & Compatibility Primary Use / Emulator .mcr ePSXe, Mednafen, BleemSync The most common format for raw memory card images. .mcd DuckStation, FPse Often used by newer or mobile-based emulators. .srm RetroArch (Libretro)
If renaming doesn't work or you need to manage individual save blocks, use MemcardRex , a dedicated memory card editor. Open the file : Launch MemcardRex and go to File > Open . Select your source file. Export/Save As mcr to mcd converter
For a more reliable conversion—especially if the file headers differ—use MemcardRex . This is a mature, open-source memory card editor that supports nearly every PS1 save format. Launch MemcardRex and open your .mcr file. : The DuckStation Emulator includes a built-in memory
: When Windows warns about the file becoming unusable, select Method 2: Using MemcardRex (Advanced Editor) mcr to mcd converter