<P>Industry should take an active part in the fight against piracy and counterfeiting. The development of codes of conduct in the circles directly affected is a supplementary means of bolstering the regulatory framework. The Member States, in collaboration with the Commission, should encourage the development of codes of conduct in general. Monitoring of the manufacture of optical discs, particularly by means of an identification code embedded in discs produced in the Community, helps to limit infringements of intellectual property rights in this sector, which suffers from piracy on a large scale. However, these technical protection measures should not be misused to protect markets and prevent parallel imports.</P>