http://www.epforums.org/goodset-rom-...265/index.html
What this means is that, for general playing, you want either the (E)[!], (U)[!], or (J)[!] ROM depending on which region you wish to play. The [f] versions are supposed to be fixed for better emulation, but that seldom makes a difference for older systems and they tend to be outdated for newer ones.
