Copyright infringement (or copyright violation) is the use of material which is covered by copyright law, in a way that violates one of the original copyright owner's "exclusive rights", such as the right to reproduce or perform the copyrighted work, or to make derivative works that build upon it. The slang term bootleg (from the use of boots to smuggle items) is often used to describe illegally copied material.
Almost everybody knows piracy is an illegal behavior. And the system of supervision is becoming more and more complete. But why the copyright infringements are still existing and developing. Here are some motivations that attract people to do that. As we all know, copyright infringement is usually at low price because they don't need to pay for the copyright. So it is easy to more appeal to somebody who can't afford high price of genuine goods. In other words, it may be easy selling. Other important reason is about useless. Genuine goods are not as useful as copyright infringement because of some legitimate limitations sometimes. Many customers will choose copyright infringement instead of genuine goods in this situation. These are the motivation about why to manufacture piracy goods.
Copyright laws have tried to keep up with the development of technology, such as radio, television, and the internet. Now many people upload some articles to websites that allow people to read free articles on it without the permission of the author. In this way, people can read many articles easily, but it is illegal. As a result, many authors prosecute the website.