alvarinho

Hi, I´m play a lot of retro games and recently i decided to go the emulator route after my dear N64 decided it was time to go. Been dumping cartrigdes, cds, dvds the works. But configuring emulators and lauchbox was exausting (you can figure out why). So simple question: how do i back it up? My idea is to zip the final the folder and use it on 2 other mini pcs that i have. Right now i have a backup that is my Launchbox folder minus the games and video and images folder - but it´s 30 gb so i´m thinking i can make it smaller. thanks in advance