What is QuickTime?
QuickTime is software that allows Mac and Windows users to play back audio and video on their computers. But taking a deeper look, QuickTime is many things: a file format, an environment for media authoring, and a suite of applications:
I tried to play one of the Quicktime movies but I see a puzzle piece. Why?
If you see a broken plug-in picture that indicates that QuickTime software has not been installed properly. Follow these steps to help identify and fix the problem.
Install QuickTime: Make sure you have installed QuickTime. If you are unsure, install it again. Get the QuickTime installer here.
Install the QuickTime Plugin: Check that the QuickTime Plugin is in the "Plug-ins" folder of the web browser you are using. If not, copy it from the QuickTime folder installed on your hard disk.
Check QuickTime Plugin version: Verify that the QuickTime Plugin installed is version 5.0 or later. If not, copy it from the QuickTime folder installed on your hard disk.
Additional help: The QuickTime Web Site can also provide more help.