Hi! maybe bit outdated but... i also had problems with the "standard" copy method via smb. To slow and unstable (maybe because of my router? Don´t know yet ...). My solution for copying big, full Rom Collections to the recalbox QUICK is the following: 1. Copy your roms to a blank USB-stick (Fat32) 2. Plug your stick to your pi 3. Connect to your pi via putty ......... lots of tutorials on the web, maybe https://github.com/digitalLumberjack/recalbox-os/wiki/Root-access-on-terminal-(EN) 4. Then you are ready to copy the roms directly from the stick to a rom folder on your sd card/Recalbox system: On the Terminal (putty) type "mount" for the list of mounted devices. At the end you will find a line like this: "/dev/sda1 on /media/usb0 type vfat .... etc etc". In this case "/media/usb0 is the adress of your usb-stick. ------- look here for help: https://github.com/digitalLumberjack/recalbox-os/wiki/Auto-mount-of-usb-in-place-of-share-partition-(EN) ----------- Now you copy all files from the stick to your sd-card with the CP (copy) command: cp [OPTIONS] SOURCE TARGET For example (copying all files to the roms/snes folder) it would be: cp -rv /media/usb0/* /recalbox/share/roms/snes Thats it. Copying a full collection of 10 GB took about 15-20 minutes on my pi. Sorry for my bad english, but I hope this helps someone! bye jan