Appeals courts hears arguments.
The program has a huge directory of songs available on the computer hard drives of many Napster users, and then uses links through the Internet to join the users' computers. With these links, users can trade specific songs from their hard drives. The program is made simple to use by allowing users to type in the name of a song title or album to find the song file and download it in seconds. So many people are using the service that approximately one hundred colleges have banned the service from being used on their computers because the excessive downloading of MP3 files congested the schools' computer networks by using up too much bandwidth. In Dec. 1999, RIAA sued Napster in federal court alleging copyright infringement.