The fair use defense is applicable, however, when parody or First Amendment issues are involved. The copyright owner's exclusive right to control the distribution of a particular copy of a work is eliminated once that copy is sold. In other words, an individual who purchases a copyrighted work is free to give or sell that particular work to another without the consent of the copyright owner. A copyright owner can protect its right to control distribution of its works if the copyright owner licenses or leases a work rather than sells it. As a general rule, copyright ownership vests initially in the author or authors of the work.
Many works incorporate the creativity of two or more authors.
Each contributor of copyrightable material to a work is a co-owner of the copyright in the work.