Actually, it is said on Sonic Retro's SCD++ page, how you can set it up. I tried to do that because I got the original rom, with the jp music, but fre:ac, which they recommend, does not convert .mp3. I have tried. You can check the site for the hack, here's the link to the exact site. https://info.sonicretro.org/Sonic_CD_Plus_Plus please reply if it works. Gameboi64
