1992.] 19B General exceptions regarding protection of computer programs (1) Subject to the provisions of section 23 (2) (d), the provisions of section 12 (1) (b) and (c), (2), (3), (4), (5), (12) and (13) shall mutatis mutandis apply, in so far as they can be applied, with reference to computer programs. (2) The copyright in a computer program shall not be infringed by a person who is in lawful possession of that computer program, or an authorized copy thereof, if (a) he makes copies thereof to the extent reasonably necessary for back-up purposes; (b) a copy so made is intended exclusively for personal or private purposes; and (c) such copy is destroyed when the possession of the computer program in question, or authorized copy thereof, ceases to be lawful. [S. 19B inserted by s. 18 of Act 125 of 1992.] 20 Moral rights (1) Notwithstanding the transfer of the copyright in a literary, musical or artistic work, in a cinematograph film or in a computer program, the author shall have the right to claim authorship of the work, subject to the provisions of this Act, and to object to any distortion, mutilation or other modification of the work where such action is or would be prejudicial to the honour or reputation of the author: Provided that an author who authorizes the use of his work in a cinematograph film or a television broadcast or an author of a computer program or a work associated with a computer program may not prevent or object to modifications that are absolutely necessary on technical grounds or for the purpose of commercial exploitation of the work. (2) Any infringement of the provisions of this section shall be treated as an infringement of copyright under Chapter 2, and for the purposes of the provisions of the said Chapter the author shall be deemed to be the owner of the copyright in question. [S. 20 substituted by s. 19 of Act 125 of 1992.] 21 Ownership of copyright Source: http://www.wipo.int/portal/es/