EmmGunn

MP4Tools

Trial version

Create, edit, and convert to MP4 video format.

Quick Batcher

Paid

quickly create batch jobs for the ffmpegX video tool

MKVtools

Trial version

Convert a variety of video file formats like mkv, avi, mp4 and ogm to either avi or mp4 files.

AVItools

Free

Create, edit and convert to AVI video format.