[QUOTE=hunterk;50587]For most games, you just need to get the correct ROM for the core (we have a bunch of MAME snapshots that balance speed against compatibility, and you’ll need to get ROM that match the specific version) and then load core > load content.
The folder structure stuff is only needed for running console games via MESS or if you want to do any really advanced MAME configuration.[/QUOTE]
In other words if doesn’t work is because the rom is not correct for research, correct?
Retroarch should recognize rom automatically?
Is it necessary to put dll with core in rom’s folder?
What model rom you use? I tried 037b5 and .198