if it's possible on recalbox at all you have to be using the GenesisPlusGX core and open up retroarch's quick menu and disable FM sound under options. PicoDrive does not have that feature and it is the default emulator for sega consoles. To change the default emulator for a specific rom (I recommend this way since GenesisPlusGX is not as smooth on the Pi as PicoDrive) you go to the rom in emulation station and press select to edit the rom metadata. First two options should be set to libretro and GenesisPlusGX. This will force that emulator to be used always for that one rom. Alternatively (and not recommended) you can change ALL master system games to use GenesisPlusGX by pressing start in ES and going to the GAMES menu, ADVANCED, Master System and change emulator to libretro and core to GensisPlusGX. Here's a list of roms that support FM sound if you use the preferred method and want to edit the metadata just for that handful of roms: http://segaretro.org/FM_Sound_Unit Hope this helps Eric

<span lang="en">Sorry Acris for taking so long to make a return ! Evidence season is a serious problem ! But the road was the same you indicated ! Let laziness aside and I move in the Core configuration ! I activated the " settings for core" and set the control assigning a button to the " diagnostic" which was pre configured for the R3 button. and interestingly it did not work. Then assign the L2 and it worked perfectly! For me the choice was lacking to leave the emulation perfect arcade in Recalbox ! Many, many thanks for your attention my friend! I'm new here and a good novice user , but I hope to give a nice return over time! Big hug! And I apologize for my terrible English! XD</span>

hey, i was running on "RICE" ... changed to "N64" i get the full picture 😄

I remapped the hotkey from R3 To L3 and it worked! thank you!

Dear Acris dear Voljega, it took me weeks to get back to that problem for I was almost desperate. Thank you. What I did was simply - download the correct rom for mame4all - set the emulator to libretto and MAME078 - I do not know why this works, I still do not get it. Thanks anyway.   Sebastian

Hello No, Neo Geo CD images doesn't work. https://github.com/libretro/libretro-fba/issues/4

Super boulot les gars pour cette nouvelle beta !!! Splatterhouse arcade fonctionne à merveille, quel bonheur de pouvoir jouer à un de mes jeux préférés dans sa version originale !!! Encore mille mercis, vous êtes les meilleurs, je vais m'éclater dessus, ça va trancher ??

If you use a RPi2, the emulation isn't perfect but is playable. Resolution : 640x480 Emulator : FBA 0.2.97.34 RetroArch options : - Integer Scale : On - Aspect Ratio Index : 19:14 - No shader/Filter And as @digitalLumberjack said, pgm.zip BIOS is needed in same folder as rom

I copied the whole set down and tried it all before I started cutting back to just the working stuff from the list. Don't worry I'll work out what it is. I can always just re-torrent down the few roms and retry.

I am lucky enough to own a nee geo cabinet so did not really try the emulator, I just used some of the games in the mame set. Anyway I have also tested it for you and works perfectly. I copied the neogeo.zip and a few versions of shock troopers. Just playing Shocktroopers set 1 This is a decent set of the roms you can search for FB_Alpha_v0.2.97.08_Neo_Geo_ROM_Collection_(NeoGeo_ROMs)_by_Lovok

Hi Moris! You .conf is almost good, but leave the blanks out! It's not: fba.shaders = / recalbox / share / shaders / shaders_glsl / crt-pi.glsl but # ------------ I - EMULATORS CHOICES ----------- # ## You can override the global configuration here ## Here is the snes example ;snes.videomode=CEA 4 HDMI snes.core=snes9x_next ;snes.shaders=/recalbox/share/shaders/shaders_glsl/mysnesshader.gplsp ;snes.ratio=16/9 snes.smooth=1 ;snes.rewind=1 ;snes.autosave=0 snes.emulator=default ## If you do not want recalboxOS to generate the configuration for the emulator : ;snes.configfile=/path/to/my/configfile.cfg ## Default Shader for MAME mame.shaders=/recalbox/share_init/shaders/crt-pi.glslp ## Default Shader for FBA and FBA_LIBRETRO fbalibretro.shaders=/recalbox/share_init/shaders/crt-pi.glslp fba.shaders=/recalbox/share_init/shaders/crt-pi.glslp This configuration is for recalbox v4 and the unzipped folder structure should be /recalbox/share_init/shaders/crt-pi.glslp /recalbox/share_init/shaders/crt-pi-barrel.glslp /recalbox/share_init/shaders/crt-pi-mask.glslp and /recalbox/share_init/shaders/shaders/crt-pi.glsl /recalbox/share_init/shaders/shaders/crt-pi-barrel.glsl /recalbox/share_init/shaders/shaders/crt-pi-mask.glsl

Hi all, i have modified the .st file for Autostart in Emulator. Now you doesnt must go to "DISKSTATION" and double-press the xxx.prg file. Have fun 🙂   greetings

Well power off your recalbox, unplug your your hard drive and check it on a computer Recalbox should have automatically created a whole directory structure under /recalbox/share  (or just /share I don't remember) then just copy your roms into /recalbox/share/roms, replug it into your recalbox, restart the recalbox and all should be ok

Thanks - I was having the same issue and that seems to have fixed it.

You don't need clrmamepro if you have the right romset. For most games you need the related bios zip file in the same folder (mame rom folder) for instance neogeo games need neogeo.zip from the full romset to work

Hello bios : https://github.com/recalbox/recalbox-os/wiki/Add-system-bios-(EN) https://github.com/recalbox/recalbox-os/wiki/recalbox-manager-WEB-interface-(FR)

thanks for reply i see the solution   You must connect the recalbox on a DVI screen but you have a black screen ? Just edit the config.txt file, and comment the line hdmi_drive=2 with a # : #hdmi_drive=2   but where config.txt in recalbox? i have found   in sistem "recalbox" but now config.txt no thanks in advance

An update: the emulator keeps saying "no BIOS found expect bugs" even though there is a BIOS in the BIOS folder.