So I've been doing some research and downloading some of the FullSet ROMs on the site, and I have come to the point where I want to download the MAME FullSet, but the labels for all of the downloads are set up like this: MAME 0.138 to 0.139 Update Pack, and there's even one with 5 parts to the same update pack, so my question is: do I need to download all of these links to get the ROM FullSet, or just the latest update pack? Please let me know, because there is no description and no reference as to what is inside the download files.