Copyright in the cyberspace with emphasis on digital libraries

There is a continuous challenge in use of information resources and scientific, art and cultural works and their copyright problems. To encounter  this challenge need to satisfy both of the copy right owners of digital contents  and the users who wants these contents.  Between medias and websites that contain digital contents under copyright laws, digital libraries maybe have more hardship about this problem; because they have numerous digital contents and resources and also have to response their users that expect receive the best resources to satisfy their information needs. Therefore the solutions that digital library use to encounter this challenge is useful for other cases that present digital content. In this article after reviewed  about the subject of copy right and the problems about it and digital libraries, tried  to present solutions for protection the copyright of  digital contents  that can used by digital libraries and another similar cases.