I acquired a MicroSD card that is loaded with ROMS and run with Retropie. I plug and play within seconds with a Raspberry Pi 3. I’m in the process of planning for an arcade cabinet build and want to make it 4 player accessible. My question’s are this.. Am I able to take the ROMs from the MicroSD and load them onto a computer? Can I add ROMS to the MicroSD? If this is possible, how? I’m not very savvy with this kind of stuff, I’m more of the cabinet building type. Any help is greatly appreciated.