Neo Geo roms question.

I was going to revive an older topic on this, one it didn't fit my question and second it was very old so thus I made a new one.

The question I have is there any way to tell the diffrence in Neo Geo roms that were made for NeoRageX vs MAME and would there be a way to convert the MAME versions to NeoRageX emulator.

Its not a big deal reason I am asking is I have quite a few in my NeoRageX and the ones I am missing from the list I have in MAME and I would like to be able to combine them together in a complete set if it was possible instead of hunting the correct versions down again.