Movie Cutter is a very easy to use application designed to help you cut and convert video files.
By using the cursor keys together with Command-, ctrl- and alt-key you can cut the video exactly up to one frame or seek fast within a video.
Movie Cutter supports all formats that are supported by Quicktime. By installing diverse Quicktime plugins you can import and export nearly any media format. By choosing sound only formats (like wave or mp3) on export, you can also export the sound of the movie.