However, for direct GME → MCR (Minecraft region/world or mod source). The two engines are fundamentally different:
format—a "DexDrive" backup from the 90s. Leo wanted to use it on his modern emulator, but his software only recognized (ePSXe) or (RetroArch) files. Leo's journey to unlock the save followed these steps: The Magic Tool : Leo downloaded a specialized editor called MemcardRex The Transformation : He opened the gme to mcr converter work
| Aspect | Rating | |--------|--------| | Availability of working converter | ❌ None | | Automation level | ⚠️ Very low (asset-only) | | Useful for serious porting | ❌ No | | Useful for learning/experimentation | ⚠️ Yes, as a scripting exercise | However, for direct GME → MCR (Minecraft region/world
Using a state machine, the converter iterates through each record. For text-based GME (GPX format), it uses an XML parser to extract <wpt> tags. For binary GME (rare), it reads fixed-offset structures. Example pseudocode: Leo's journey to unlock the save followed these
This is a proprietary file format used by the DexDrive , a PC-to-memory card interface. A GME file is essentially a "dump" or snapshot of a 128 KB PS1 memory card, but it includes a specific 3904-byte header containing metadata that emulators cannot interpret.
This is a "raw" memory card format used by the PSEmu Pro and subsequently adopted by emulators like ePSXe. An MCR file is exactly 131,072 bytes (128 KB), representing the 15 blocks of a standard PS1 memory card without any additional headers. How the Converter Works