A copyright is supposed to protect a creatorÃ¢â‚¬â„¢s intellectual property and ensure that the copyright holderÃ¢â‚¬â„¢s work isnÃ¢â‚¬â„¢t nefariously misappropriated. However, they donÃ¢â‚¬â„¢t always work so well; just ask anyone who has fond memories of Napster circa 2000. Not all copyright battles are Metallica-initiated, though. Take, for example, these three instances of infringement.
nice set of copyright infringement examples.