Section 4 of Copyright Act excludes copyright protection for: any thought, religion, news, method of operation, concept, principle, court judgement, administrative decision, folksong, folktale, proverb and general data.                                                                                     Chapter 4 of Copyright Act allows the following exceptions whereby copyrighted materials can be used without authorization: 1) Reproduction of some portions for personal use in a manner not prejudicial to the economic right of owner; 2) Citation of some portions for fair use; 3) Reproduction of some portions for teaching and learning; 4) Reproduction of one copy of lost/destroyed work by the library and archives; 5) Reproduction, broadcast and other communication for purposes of information to the general public without being prejudicial to the economic rights of the owner; 6) Reproduction of one copy of a computer program in special cases; 7) Importation of one copy of any work for personal purpose; and 8) Public exhibition/display without the help of film, slide television image or otherwise using the screen or device of other kinds.