If the rename trick fails or your emulator refuses to read the renamed file, an online converter will rebuild the header data correctly. Step-by-Step Instructions:
MCR to MCD Converter: How to Manage and Transfer PlayStation Memory Card Saves
Connect your phone to your PC or use a mobile file manager app. mcr to mcd converter
Connect your phone to a computer or use a mobile file manager app.
Because .MCR and .MCD are both raw or near-raw copies of a 128 KB PS1 memory card, many modern emulators can read them interchangeably if you simply change the file extension. Locate your .MCR file on your computer. Right-click the file and select . Change the .mcr at the end of the filename to .mcd . Press Enter and confirm the warning dialog box. Test the file in your emulator. If the rename trick fails or your emulator
def convert(self): print(f"Converting os.path.basename(self.input_path)...")
: This happens if the file extension was changed manually (e.g., just renaming save.mcr to save.mcd ). You must use a converter tool to change the underlying file structure, not just the text extension. Because
To give you a complete picture, here are other common PS1 memory card formats you might encounter:
Several retro-gaming community sites offer browser-based drag-and-drop converters.