Unlike a simple CSV or GPX, MCR is . It does not store latitude/longitude in plain text. Instead, it uses a packed data structure: 4 bytes for X coordinate (in seconds multiplied by 100), 4 bytes for Y coordinate, and a variable-length record for the waypoint name and description. This binary packing is what makes direct editing impossible and conversion necessary.
Theory is nice, but I test on real hardware (an FPGA System 16 replica) and in MAME.
Converting (DexDrive) files to .mcr (ePSXe/standard emulator) format is a common task for playing old PlayStation 1 saves on modern emulators. The most reliable way to do this is using the free utility MemcardRex . Quick Guide to Converting .gme to .mcr
The technical specifications of GME to MCR converters vary depending on the application and requirements. Some of the key technical specifications include:
Or with (Windows GUI):