The repacking of the MPR-21931 IC501 is a exercise in low-level data manipulation. The process generally follows these steps:
On a NAOMI cartridge PCB, labels like IC501, IC502, etc., indicate physical socketed ROM chips. demul mpr 21931 ic501 repack
If you see mpr-21931.bin missing, you have a split set that needs merging. The repacking of the MPR-21931 IC501 is a