It's the changes to the beta romsets that gets me down in the end - the beta releases of mame are easy enough to get hold of. There are several good arguments AGAINST using the betas as have been mentioned. The only good arguments FOR using the newer betas is when a new game gets emulated that can't be played on the latest stable mame final or if an emulation problem in a previously emulated game gets fixed. In all other cases I would like to see people use the latest mame final.(posted 9475 days ago)You can't stop people wanting to use the latest and greatest though (and I'm guilty of it myself) so that is why I have given in and installed all mame betas on my system. Good thing I have a 6 Gb partition devoted to MAME :-)