> Well the thing is, both his drives showed 1.3 and when he got the newer one and > popped it in, it said 1.4 and apparently had a picture of the dev team [iirc], so > this is why I was inquiring. > > I mean if it's on the HDD itself, then will this mean that ever rev need be hunted > down for accuracy... and if not.. then how the heck did this occur? > > > TknoMncr
Revisions can be stored as ROMs and CHDs. Take for example Killer Instinct 2, notice how revisions are listed for ROM and disk respectively. Currently MAME supports only one Killer Instinct 2 disk version, but that doesn't mean it's the only one. Your friend apparently got an upgraded 1.3 disk which got updated to 1.4 at an uncertain time.
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