Summary Box: UK court sides with music industry

THE REQUIREMENTS: Britain’s new copyright rules require Internet service providers to send an escalating series of warnings to users suspected of illegally swapping movies and music. Eventually, service providers can suspend repeat offenders’ access to the Web.

THE DISPUTE: Leading Internet companies argue that the requirements would be unnecessarily expensive and invade users’ privacy. Copyright holders say the rules are needed to curb piracy.

THE DECISION: A three-judge panel at London’s Court of Appeal sided with the entertainment industry.