Hi, I'm pretty much a MAME/GameEx newb, and I had a question about MAME versions. I SORTA get that mame dat files contain all the information about the Rom sets for whatever version of MAME you are running (I don't quite get how you validate your roms, or get updates, or new dats, or whatever.) I know GameEx uses the dat file to update the MAME list (for specifically what I'm not sure.) So I downloaded a new Romset (v.111u5) and I looked into the dat file in GameEx (C:\Games\Emulators\GameEx\DATA\mameinfo.dat), and it says "# MAMEINFO.DAT v0.108 Last Update: 22nd August 2006" at the top. Do I need to get a new DAT file? I downloaded one named "MAME SuperSet v0.111", but I'm not sure if I just overwrite the GameEx one and update the "Advanced MAME Settings", or if I'm even SUPPOSSED to be doing that. I did do several searches and got a lot of info on DATs and MAME and CLRMamePro, but I haven't yet assimilated it well enough to understand precisely what I'm to be doing when I update ROM sets, etc. Any tips or help would be appreciated! Thanks, Matthew