> I'd like to ask a people here - how do you solving a problem with your new-compiled
> Neo-Geo programs testing on the new MAME versions (point is that latest MAME versions
> are always checks a rom checksums before its loading, and as a result it's became
> impossible to launch a new roms with old way)?
If adjusted roms have the same rom label name but different hashes and/or sizes, it is totally possible if you launch the game via the command-line. It is a specific developer perk. Launching through the UI requires an exact match of label/hashes and size.