SoundJudgment will then report the results via e-mail or a log file and optionally delete the detected items. The search can also be done inside compressed files. Operational Highlights SoundJudgment runs as a full GUI application or in stealth mode. The program is also designed to reside on a file server and execute from the login script, eliminating the need to install the program on every workstation. With more than 20 million users, Napster is the most popular, with other services appearing almost daily.
All services use similar technology to create a music lending library.
When users register with a service, they are giving permission to other users to download MP3 files from their PCs. The Napster server holds only the list of files and works as a matchmaking search engine for music requests among its online community. Even if the RIAA succeeds at shutting down the most popular service, other services remain. For example, iMash has more than one million users and resides in Israel. Other services, like Gnutella, do not use a central server, therefore, it is nearly impossible to shut them down.