Batocera is distributed with some free roms. If you want to add roms, you have several possibilities :

• add them from a different computer while Batocera is running, through the network
• directly add files on the sdcard/usb key if your host OS supports ext4 (i.e. if you are using Linux as your host OS, if you are using Windows you should add an ext4 driver with one of the modules listed on this page.
• use an external USB key to store roms - this external USB key can be formatted in FAT32 to be read under Linux, Windows and MacOS.
• use a nas to store roms, and add the roms to the nas
• On PC x86, open a file explorer via the F1 key and copy and paste files from an other disk

To add rom files, you have to connect to your Batocera from a differnt computer on the same network :

1. from your computer directory (or finder on mac os x), browse the network
2. find BATOCERA (or you can directly type \\BATOCERA (under Windows or MacOS) or smb://BATOCERA.local (under Linux))
3. add roms into the /roms directory, in their respective system folders (i.e. /roms/nes for NES roms)

Once your SD card / USB drive is mounted (see the link above if you have issues accessing ext4 partitions under Windows), copy and paste the rom files into their respective systems folders (i.e. /roms/nes for NES roms).

Same as with a SD card, except that you can use FAT32 as the partition format to have access under all major Operating Systems.

Nas usage is described in a specific section : Store games on a nas.