NeoGeo

Hey all, Forgive the stupid question. On again, off again MAMe user, I recently returned and setup the newest MAME, version .221 I copied NeoGeo into the ROMs folder, but seems as though it’s missing a couple components. Is it likely that the version of NeoGeo that I’m using (have tried 2 different sources) is not compatible with this newest version of MAME? Any other thoughts? Thanks in advance. (Edit: this is exactly what rule #4 suggests. Just wondering if anyone else can please confirm)

EDIT: downloaded an older version of MAME and it works. Thanks everyone! Game on!