> > In days where multi terabyte hds are commonly used (and for MAME 1TB is more than > > enough for your pirated roms), compression ratio/speed does not really matter. > > Why was the support for 7z added in .146 then again?
Because we need to be able to support ROMs with more than 4 GB of data. 7zip exists on all the platforms we care about and has been well-tested. zip64 fails those criteria.