ww97

I did it, black screen again. Maybe that BEW was just for changing the emu for a platform, that I can do it easily in Manage Emus. I think it's nonsense. I'm sure that the bios and ISOs are good dump, since it worked on BizHawk and Mednafen when not using LB. For RetroArch itself, does it need additional settings more than downloading the core and copying the BIOS? (P.S.: Weirdly, when I typed the parameter address in "Default CL Parameters" in the first tab, it opens up RA (with a black screen) but when I erased it, RA wouldn't open up even! So, on the contrary of your idea, this also does matter. )

Sorry for inactivity. 1. I unchecked every associated platforms instead of TurboGrafx-16 (though I want it for PCECD; my PCE16 emu is Magic Engine) cuz I only want it for PCECD. The Mednafen_PCE core is installed. Retroarch opens, but shows a black screen. I tried it again when I entered the PCE parameter (checked in associated platforms) in the "Default command-line parameter" also. But no change.

I tried the same trick for Nox AppPlayer, and weirdly it worked :-) Just if we ignore the 1-minute initial loading time of Nox itself.

LB? I'm not noob on emulation, but on Libretro, yes.

Ah. Thanks for overhyping me on RetroArch. Now I even can't load the game on RetroArch itself, even I have the libretro BIOS pack and downloaded PCE/PCE-CD core.

I switched to Mednafen, but the prob is not fixed yet. Without a parameter, it does not load. I used the parameter pce.cdbios, typing only syscard3.pce (hence the BIOS is the root Mednafen folder) and it loads, but it hangs on "JUST A MOMENT..." maybe it has just loaded up the bios file as a ROM file, as the border bar shows "syscard" instead the name of the game.

I tried Rainbow Islands (PC Engine CD version) in BizHawk. The bios has been set. When I load it directly from BizHawk, it loads well, but when I load it via Launchbox, after an [Enter], it shows "LOAD ERROR!" message. Does it need a parameter? I didn't see any for BizHawk. Also, don't tell me to switch to Mednafen, cuz when I was trying it for Lynx, I discovered that it sucks for me.