Always back up your own games. Piracy harms developers, but format shifting for preservation is your legal right in many jurisdictions.
The WBFS file was the solution to a practical problem: the fragility of physical media. It allowed the hardware of 2006 to play the hits of 2014 without a disc drive whirring like a jet engine. It was a testament to the homebrew community's desire to keep these experiences alive, long after the publishers had moved on to the next console generation. Just Dance 2015 Wii Wbfs
The game utilizes the to track hand movements as you mimic the on-screen "coach". Just Dance 2015 Always back up your own games