The First Sale Doctrine, codified at 17 U.S.C. § 109, provides that an individual who knowingly purchases a copy of a copyrighted work from the copyright holder receives the right to sell, display or otherwise dispose of that particular copy, notwithstanding the interests of the copyright owner. The right to distribute ends, however, once the owner has sold that particular copy. See 17 U.S.C. § 109(a) & (c). Since the first sale doctrine never protects a defendant who makes unauthorized reproductions of a copyrighted work, the first sale doctrine cannot be a successful defense in cases that allege infringing reproduction.
Further, the privileges created by the first sale principle do not “extend to any person who has acquired possession of the copy or phonorecord from the copyright owner, by rental, lease, loan, or otherwise, without acquiring ownership of it.” See 17 U.S.C. § 109(d). Most computer software is distributed through the use of licensing agreements. Under this distribution system, the copyright holder remains the “owner” of all distributed copies. For this reason, alleged infringers should not be able to establish that any copies of these works have been the subject of a first sale.