: These are raw disc images. .WUD is an uncompressed dump (often ~23GB), while .WUX is a compressed version. Both require specific "title keys" to be decrypted and played.
There are two main types of Wii U ROMs:
If you are building a digital library, these titles are highly regarded for their performance and gameplay: roms de wii u
The following are some of the risks associated with downloading and playing Wii U ROMs: : These are raw disc images