audio editing

Designed for creating and editing tests, followed by tests of knowledge.

Collaborative editing software that runs Wikipedia.

Simplify generation and editing of DataGrid for web developers.

Goldberg is a freeware image and movie viewer with image editing capabilities

Jubler is a tool for editing text-based subtitles

DVD post-authoring editing.

Notepad with some editing feature.

Image Tricks — photo and image editing software for Mac

Award winning video editing software

QuickTime Effects include 7 video editing effects plug-ins.