Jp-mcd1-9111.bin ((new))

jp-mcd1-9111.bin is the bios dump for the Japanese Sega Mega-CD Model 1 (often referred to as the Sega CD in other regions). Specifically, it corresponds to the: Sega Mega-CD 1 (Japan) BIOS Version: 1.00 (June 1991) Japan (NTSC-J) What is this file used for?

While Version 1.00 and Version 1.10 are widely documented across retro-gaming archives, the 9111 variant (representing Version 1.11, compiled or released around November 1991) remains a unique historical artifact in the Sega emulation and preservation community. Technical Specifications and Architecture jp-mcd1-9111.bin

Identify which might work for your setup jp-mcd1-9111