Perian is a free plugin that enables QuickTime to play almost every popular video format.
ffmpeg gui wrapper für macosx
MediaPipe is a flexible framework to manipulate media on MacOS X. It allows you to build decoding, filtering, encoding and even streaming pipelines that correspond exactly to your needs.
overview macos video editing
Free DVD Authoring tool for MAC. Sizzle is a GUI/frontend for dvdauthor.
The x264 QuickTime Codec is a QuickTime Image Compression Component which uses the free, open source x264 H.264/AVC encoder. It can produce H.264 encoded video faster than the Apple-provided H.264, with more configurable options and better quality.