Just because you own a copy, does not mean you own the copyright.
Copyright infringement, or piracy, is the unauthorized, unlawful copying and use of literature, software, videogames, movies, or music. Copyright law gives the creator the sole authority to reproduce or distribute the created work. It is not safe to assume that anything on the Internet is “public domain.” The latest digital technology allows high-quality copies of copyrighted works to be made and easily distributed. Violators of copyright laws are subject to fines and even imprisonment.