virb edit

Easily create, edit and publish rss feeds, podcasts and iTunes with software.

Create and edit 32-bit system icons.

FileCarver is an application that edit binary data files.

With OcarinaPitcher you can easily edit pitch on mac then play it.

Ardour can record, mix, edit and collaborate audio files.

Spot, edit and render subtitles for video editing, DVD authoring, etc.

Use Norrkross Movie to edit video in multiple layered tracks

Context menu plugin to view/edit image files without launching any application

Create your own fonts or edit existing fonts.

Convert DVD to AVI with variour options to edit your DVDs on Mac PPC or Intel