WUDecrypt is an open source tool to decrypt Wii U disc images in the WUD format.
http://wololo.net/2016/05/10/wudecry...linux-windows/
https://gbatemp.net/threads/wudecryp...images.425834/
http://wololo.net/2016/05/10/wudecry...linux-windows/
https://gbatemp.net/threads/wudecryp...images.425834/