QuickTime Player Guides

QuickTime is a cross-platform multimedia framework and architecture developed by Apple Inc., that is used to handle digital video, audio, animation, text, and image formats.  Quicktime is built into the Mac OS X operating system and is also available for use on Microsoft Windows as a standalone install or bundled with iTunes.
QuickTime Player is an application included with Mac OS X that allows the playback of files that Quicktime can handle.  It serves as the key Mac OS X multimedia playback application and resides in the Applications folder.
QuickTime Pro offers many features over the standard QuickTime Player application that is installed on Mac OS X.  You can easily upgrade to QuickTime Pro (for a fee) by following these steps: