I have the psvita 3.60 henkaku and the pfba version for ps vita and the 1,100 roms of the megadrive work perfectly for me.
Thanks @cpasjuste.
For such a wonderful emulator pfba, grateful.
i would be grateful if you can share your version of PFBA & tell me where you got those working roms from as i have tried everything even converting mega drive roms but no success,i only want to play space invaders the mega drive game