His modded Wii U sat in the middle of his desk, its blue drive light flickering like a dying heartbeat. Outside his window, the city hummed with the quiet dread of an incoming firmware push—Nintendo’s “Great Purge” update, set to go live at midnight. Any non‑official file would be locked, wiped, or rendered useless.

: An ISO is a 1:1 raw image of the original disc, which is the universal standard for most legacy tools. The Conversion Process

Playing backups on original Wii or GameCube hardware via loaders like USB Loader GX often requires ISO or WBFS formats.