Floob
Member
Post count: 1629

If you are using 3.0 beta 2, and want to use mame4all (which uses mame 0.37b5), the roms should go in here:
/home/pi/RetroPie/roms/mame-mame4all

You could strip the clones out if you like, I have attached a dat file for clrmamepro that just has the parent romsets (about 700) for that version.

It really is worth the 30-60mins to run through the guide to understand how to verify romsets if you want to get arcade games working well.

A guide is here:
https://github.com/retropie/RetroPie-Setup/wiki/Managing-ROMs