Select a save location and wait for the process to finish. Once complete, you can safely delete the original source folders to save space. Playing on Original Wii U Hardware

stands for Wii U Archive . It is an open, compressed, read-only archive format designed specifically for Nintendo Wii U disc games. Unlike simple ZIP or RAR archives, WUA is purpose-built for emulation.

Fortunately, a file format called (Wii U Archive) solves this exact problem for PC emulation.

By reducing the number of individual file-read operations the operating system has to perform, Cemu can often index and launch WUA files faster than folder-based versions.

WUA takes all those disparate files—game data, updates, and DLC—and bundles them into a single, compressed file with the .wua extension.