I used the latest available BIOS, and didn’t have any problems. I can’t say for sure if the rom set matters, everything I’ve tried seems to play though, so I’m guessing not.
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Quick question: how different is from mame / mess emulation? I’m using mess, and chd support is great, but the performance isn’t that great. I mean, on my devices the speed is perfect, but I have a Moto Z2 Force and a Shield TV, I’d like to run NGCD on a ouya, for example. Is this possible?!
Just based on my experience, I’d say FBAlpha is far less intensive than both MAME and MESS. Retroarch FBAlpha has the overclock option as well, which I think can help with less powerful systems.
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Great guide, it’s going directly to my bookmarks, it actually works even on Android, do the music tracks play correctly for you? I tried Crossed Swords 2 and only the sound effects work, my rom has all the respective mp3 files and cue file. Anyway what other neogeo cd games you guys recommend? Which ports are actually better than the neogeo arcade ones?
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Neo Geo Turf Masters and Baseball Stars 2
I think the music not playing is a known issue (there’s a github issue on it)
That’s a shame, so no roms with .mp3 files music works? Has anyone tried Crossed Swords 2?
I dont think any ISO/CUE/Audio File combination works
Every game I’ve tried seems to play just fine, except for the music which does not play (including crossed swords 2), which is a known issue
So does the games you have tried the music works? What roms are you using?
Well, can’t make it work on android. “Failed to load content” is the message. 
Tried 32 and 64bit. also, bioses are on the right place, it’s the same bios I use on MESS…
I have had the issue where it fails twice. Try selecting the Load Neo Geo CD option again, and choose the ISO file. It for whatever reason sometimes works on the first try, and sometimes the second.
This option won’t even appears to me.
I got it to work but when I fast forward it stops playing and get a Error
Update the fba core and your RetroArch version
The only game that works with music I have tested is puzzle booble because it has no mp3 tracks, I hope the music gets fixed some day, with this core you get great performance on Android.
I use lr-mess on my pi. It has ngcd chd and cd audio support.
What if you have the option of system files being in their own folders on? Does the bios still go in system folder or system/fb_alpha?
And does the game folder HAVE to be named ‘Neo Geo CD Games’?
Does it have to use separate mp3 track files? I always converted to single bin/cue before switching to chd.
How do you convert them?
When I load the .cue or .bin file I go to Bios Screen but when I press play it won’t load.
Why?