QuickTime is a system
extension that lets your computer play digitized video and
audio files called "movies." You can see QuickTime movies in
many of the software packages available on CD-ROM
disc.

Thousands of sites on the World Wide Web
feature QuickTime movies. You can view these movies if you
have the QuickTime extension installed on your system and
the QuickTime Plug-In, version 1.1 or higher, in the Plug-In
folder of your Web browser.
You can also buy a variety of programs
for creating and editing QuickTime movies.