Re: Neo Geo and MAME
Well, MAME does label which version of each game you should use, but often times, you have to download several dumps of the same game instead of one, since it doesn't include all the necessary files in one compressed archive; they're spread out through several different ZIP files, and you have to weed them all out with every arcade game. So if that's what you're saying, then yes - that is another problem with supplying MAME ROMs.
"Glass Tiger for life!
This, as well as the fact that iirc lots of arcade games have multiple different versions.