This process is typically used by chiptune artists, retro game developers, or emulation enthusiasts who want to extract/convert old game music data into a human-editable MML format.
0x000000 – 0x07FFFF → Main 68000 program ROM0x080000 – 0x09FFFF → Z80 sound program ROM (the GME region)0x0A0000 – 0x0BFFFF → YM2151 instrument data0x0C0000 – 0x0FFFFF → PCM samplesAn MCR file is not a container—it’s a memory map. For a Sega System 16B board: gme to mcr converter work
Here is a review of the current state of GME to MCR conversion work, broken down by context. This process is typically used by chiptune artists,
Save as MCR: Go to File > Save as.... In the "Save as type" dropdown, select ePSXe/PSEmu Pro Memory Card (*.mcr). 0x000000 – 0x07FFFF → Main 68000 program ROM
Some GME files contain only one game save rather than a full 15-slot card. Converters can "inject" these single saves into a full-sized MCR file. Region Correction: