VGM file to an OPM patch using the vgm2opm tool courtesy of Shiru and I don't recommend putting them ALL on your SD card at once as load times will begin to suffer. One thing to note: This is a REALLY big collection of files. You can find just about anything in this collection. There is a massive pack of ripped OPM files ready to go that spans almost the entire Genesis library. Want to try your hand playing Chemical Plant Zone's bass patch? Go for it.

Do you like ThunderForce's Guitar patch in the track Metal Squad? Play it. These aren't 'sound-alike' patches either, they are the actual identical patches lifted directly from the game's source. With the Mega MIDI, you can, in fact, DIRECTLY play FM patches from any Sega Genesis game's music. FM synthesis is very complicated, so while you still have the option to create your own FM patches, it would be way easier to just directly take the FM voice patches from the games themselves and use them on your Mega MIDI. The OPM format stores the register data for FM patches that you can use to easily program your YM2612 with. OPM files were originally designed for the VOPM virtual synthesizer. Play Any Instrument from Any Genesis Video Game Music Since you are using the real YM2612 and SN76489 ICs, you can experience playing the Sega Genesis as a musical instrument with the true fidelity and accuracy as the real thing. Yamaha's FM synthesis is pretty tricky to emulate in the first place, but the YM2612's signature gritty DAC is mostly to blame for the lack of truly accurate emulation. There are some that get close, but nothing compares to the real thing. You'd be hard-pressed to find an emulated YM2612 core that sounds exactly like the real YM2612. Therefore, you are limited to the limitations of the actual hardware, which I will explain in more detail down below.

This synthesizer does not use emulated sound - it's the real deal. The primary FM sound source is the Yamaha YM2612, but I have also included the SN76489 PSG which was also present on the Sega Genesis. This project contains the source material for the Mega MIDI, a MIDI-controlled Sega Genesis/Megadrive Synthesizer that uses the genuine sound chips from the console itself.

Sega genesis sound chip emulator