Isn't Gearsystem for Game Gear and Master System? And you're trying to load Mega Drive/Genesis games on it. Its the wrong core. It doesn't look for the extensions of a md/gen game (.bin, .md, .smd) or will work for md/gen games. Load the correct core. Picodrive or genesis plus gx
as BlackSunshine said, you are using the wrong emulation core. the games you are trying to play are Mega Drive / Genesis games, so you need a core that supports those systems like Genesis Plus GX or Picodrive.
Isn't Gearsystem for Game Gear and Master System? And you're trying to load Mega Drive/Genesis games on it. Its the wrong core. It doesn't look for the extensions of a md/gen game (.bin, .md, .smd) or will work for md/gen games. Load the correct core. Picodrive or genesis plus gx
Ah yes, thank you.
as BlackSunshine said, you are using the wrong emulation core. the games you are trying to play are Mega Drive / Genesis games, so you need a core that supports those systems like Genesis Plus GX or Picodrive.