This software technology allows the digitization of audio and video data from analog sources and then its compression for storage and decompression for playback on various PCs It is designed to be used with little or no additional hardware but can also be used with add-on equipment ranging from a few hundred to several thousand dollars. From the start, it was designed as an open architecture that could be extended by third-parties.
Layers can appear and disappear in time independently.
All these elements are combined into one data structure. QuickTime is available for both Windows and Macintosh computers and has emerged as the major standard of its kind for personal computers. Apple produces QuickTime for Windows which lets you playback QT movies created on a Mac on any Windows platform. QuickTime system software is distributed freely , together with support software for capturing and editing media. QuickTime files are easily converted between Windows and Macintosh computers and are often distributed on CD-ROM or over the Internet.