Avidemux is a free video editor designed for simple cutting, filtering and encoding tasks. It supports many file types, including AVI, DVD compatible MPEG files, MP4 and ASF, using a variety of codecs. Tasks can be automated using projects, job queue and powerful scripting capabilities
Exaile is a media player aiming to be similar to KDE's AmaroK, but for GTK+. It incorporates many of the cool things from AmaroK like automatic fetching of album art, handling of large libraries, lyrics fetching, artist/album information