An impartial exam in 2009 uploaded multiple versions of a similar song to YouTube and concluded that even though the system was "shockingly resilient" in finding copyright violations during the audio tracks of films, it was not infallible.[154] The usage of Information ID to remove materials routinely has triggered controversy https://notebook.zohopublic.com/public/notes/t7wo177a3d9421f2e4cf9b45c5982fa35bbda