If you own a real PS1 memory card and a backup device like a DexDrive or MemCARDuino, you may need to convert the dumped image to a format that your current emulator can read. MemcardRex can handle both sides of this process.
There are three primary ways to handle this conversion: renaming the extension manually, using a specialized desktop software tool, or using an online file converter. Method 1: The Quick Rename Trick (Most Reliable)
A warning will appear saying the file might become unusable. Click .
| Format | Associated Emulator / Device | |--------|------------------------------| | .srm | RetroArch / PCSX ReARMed | | .gme | DexDrive (hardware backup device) | | .bin | pSX / AdriPSX | | .psv | PS3 virtual saves | | .vmp | PSP / PS Vita | | .mc | PSXGame Edit | | .mci | MCExplorer | mcr to mcd converter
Note: If your emulator throws a "Corrupt Data" error, the internal structures are slightly different, and you must use Method 2 or 3. Method 2: Using MemcardRex (Recommended Desktop Software)
The is not just a utility; it is a strategic enabler for Industry 4.0. By automating the painful process of migrating legacy relay-type logic to modern, data-oriented control structures, it allows manufacturers to upgrade their plants faster, safer, and at a fraction of the cost of manual rewriting.
If you are diving into retro gaming, you will likely encounter different memory card file formats. Two of the most common formats for PlayStation 1 (PS1) save files are and .MCD . If you own a real PS1 memory card
: If a warning pops up about changing extensions, click "Yes." Using Specialized Tools
The MCR to MCD converter is a device or a circuit that converts the milli-ohm resistance (MCR) to milli-d Siemens (MCD) or milli-mhos. This conversion is necessary in various applications where both resistance and conductance measurements are required.
Note: If you cannot see the .mcr extension on Windows, open File Explorer, click the tab at the top, and check the box next to File name extensions . Method 2: Using MemcardRex (Advanced Management) Method 1: The Quick Rename Trick (Most Reliable)
This happens if the original .MCR file was a "state save" (savestate) instead of a proper in-game memory card save. Ensure you are converting standard memory card saves created at an in-game save point.
This format is another variation of a PS1 memory card backup. It is primarily utilized by FPse (a popular PS1 emulator for Android) and older legacy emulators like Bleem!. Why Conversion is Necessary
Technically, .mcr is a file extension used for . If you are a scientist trying to convert this to .mcd (another crystallography format):
PlayStation 1 (PS1) emulation allows you to relive classic gaming memories on modern hardware. However, managing memory card files across different emulators can be frustrating. You will often need an MCR to MCD converter to make your save files compatible with various platforms.
In ATM (Asynchronous Transfer Mode) networks: