The list of these types is growing daily. Extensibility One of the MIME standard's major strengths is its extensibility. To ensure orderly growth, the MIME standard defines a registration process by which creators of MIME types or subtypes can register these types. The process uses the Internet Assigned Numbers Authority as a central registry for these numbers. Note that as more vendors and organizations develop Web-enabled applications, the number of registered types is expected to grow considerably.
MIME standards play a role in virtually all data transactions on the Internet and intranets.
Having some knowledge of MIME standards and MIME media types is important for both users and developers. The Users Perspective Multimedia is quickly becoming commonplace on desktop computing platforms. It's difficult to buy systems that don't support some form of audio output and video display. Also, more and more Web sites are incorporating audio and video into their HTML presentations. This trend is expected to increase.