@Major4 ,
For a new install, maybe you can think to use an usb key for the Share folder. Formated in Fat or exFat, it will be seen by all os. It will be safer in case of sdcard bug (it could append) and easier for future roms moving or scrap with an external scrapper.
Have a look to the wiki : https://github.com/recalbox/recalbox-os/wiki/Use-an-external-usb-storage-device-on-recalbox-(EN)