Originally, WBFS was a filesystem created by Wii homebrew developers to store ISO images on USB drives without wasting space. Over time, the term "WBFS Archive" evolved to mean two things:
While the format is technically obsolete today, the concept of a "WBFS Archive" remains a vital touchstone for the Wii homebrew and preservation community. Wbfs Archive
A standard Wii disc image (ISO) is exactly 4.37 GB, regardless of how much data is actually on the disc. WBFS "scrubs" the empty padding, meaning a game like Kirby’s Epic Yarn might only take up 1.6 GB instead of 4 GB+. Ease of Use: Unlike complex ISO formats, files are plug-and-play with modern Wii homebrew apps. Hardware Longevity: Originally, WBFS was a filesystem created by Wii
: Multiple community-uploaded "WBFS Collections" host vast libraries of Wii titles for historical preservation. WBFS "scrubs" the empty padding, meaning a game