Every Mac comes with QuickTime Player preinstalled. It's the video player that opens up when you're watching a video you've downloaded or synced from your phone to your Mac.

Or perhaps you want to record what’s happening on your screen—say, for a video tutorial. QuickTime Player can do that, too.

QuickTime Streaming Server 3 Preview is out. New features make streaming better, configuration is accomplished via a web-based interface, Mac OS X support, and more.