Just an FYI, but Mednafen 0.9.16 has improved accuracy(in the digital portion, not the analog filter portion) PSG emulation compared to 0.8.x and earlier, and a setting "pce.psgrevision" to control which PSG revision to emulate("huc6280", "huc6280a"(default), "enhanced" -- read the documentation for more details). Many games are less clicky with HuC6280A, but there's one game(can't remember the name off hand) that sounds fine with HuC6280 but becomes a clicky mess with HuC6280A.