Neo Geo Setup/Start Issu

[Phenomenon101]

I'm a bit confused with the set up of Neo Geo.  It could be because I'm either misunderstanding the ROM Set type or the emulator type.  I'm using Retroarch and then using fbalpha2012 core.  All the Neo Geo romsets that I find appear to come with their own emulator.  Still, I try to copy those games and paste them to my own Neo Geo directory.  For some reason, none of those ever boot with Retroarch.  One came with an emulator called NeoRagex.  It's completely different than RetroArch and I would prefer to stay with RetroArch.  Does anyone know what could be the problem?  Is it that the set of roms are not actually for a Neo Geo emulator and instead are using an emulator that is proprietary?  I was able to find a site with Neo Geo roms (looked similar to what I had downloaded) and those worked, but they were limited.  Can anyone tell me how to confirm whether a rom set downloaded would/should work with fbalpha? 

[neil9000]

5 minutes ago, Phenomenon101 said:

Is it that the set of roms are not actually for a Neo Geo emulator and instead are using an emulator that is proprietary?

If they come with neoragex then they are likely a very very old romset and simply not compatible with more recent emulators, even ones based off of 2012 codebases.

[Phenomenon101]

1 hour ago, neil9000 said:

If they come with neoragex then they are likely a very very old romset and simply not compatible with more recent emulators, even ones based off of 2012 codebases.

So I'm not finding a lot of complete sets.  Those that are complete, I have to use the emulator they have which you stated are old sets.  Does that mean I'd have to set up Launchbox to use that emulator?  Or are the newer rom sets available?