from the blog:
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MacMAME
Version: 0.103u2 ||
Release Date: 2006-07-10 ||
License: Other Open Source
MacMAME is an emulator whose sole purpose is to emulate the inner workings of arcade game machines. It does this by fooling the original program code, contained in ROM chips, into thinking they are running inside the real machine when in reality they are running on your Mac.
Tags: emulation , arcade , mame



2 Opinions:
Fantastic. Unlike MAME OS X, it doesn't crash when a ROM has missing files, and (more importantly) tends to have a v good compatibility (over half my ROM's won't work with MAME OS X 0.118).
Overall, the best arcade MAME emulator out there for OS X then.
Recently discovered Universal Binary port: http://mameosx.sourceforge.net/