Smaller size, works directly with USB loaders without decryption step.
1. Overview WBFS (Wii Backup File System) is a proprietary, sparse file system format specifically designed to store Wii game disc images (ISO) on USB storage devices (hard drives, SSDs, flash drives). It was created by the Wii homebrew community, primarily for use with USB loaders (e.g., USB Loader GX, WiiFlow, Configurable USB Loader). wbfs files
Unlike raw ISO files, WBFS eliminates redundant padding, dummy data, and unused sectors, significantly reducing the storage footprint of Wii games. Smaller size, works directly with USB loaders without