How Music Got free by Witt is a book about the invention of the MP3 format for audio info. He talks about Brandenburg research of human hearing and correct compressed songs in an easily tranmitted form. He also talks about the copyright-infringing efforts online in the music industry and how people how to adapt to all the change of technology. The copyright infringement disputes are through civil court and is for using a creators work by reproducing or displaying or distributing the work.