> > I've been > > told there's already a working script with basic score save/load on Github > somewhere, > > but it's not crossplatform ready. > > > > Here it is: https://github.com/borgar/mame-hiscores > > I do not test it although, so I don't know if it works.
It does work on *IX versions of MAME (Linux/*BSD/Mac OS X), the paths need some adjustment for Windows.