QuickTime - the codecs and video as a proprietary format (MOV and QT), and other common mediaformatov digital video, audio, text, animation, as well as streaming video from the Internet. Supported including MP3, AVI, AVR, MPEG (including MPEG-4), AAC Audio, Flash.

What's New in QuickTime 7.4.1
QuickTime 7.4.1 addresses security issues and improves compatibility with third-party applications.
This update is recommended for all QuickTime 7 users.