Are you saying there is a way for non mamedev's to get access to the FTP site? (If there is, DONT post it!) I'm just curious since i know that there are a lot of incomplete dumps and things.
This is OT to this topic, but i've had boards in the past that didn't work because a rom was missing. Later on, i found out that a partial dump existed and what do you know? The two together made a complete dump
At least knowing what partial dumps are there would be somewhat handy. Getting access to them would be a whole 'nother matter!