What is OggConvert?
OggConvert is a small Gnome utility that uses GStreamer to convert media files to the licence-free Theora, Dirac and Vorbis formats.
The main selling points are:
It's painfully easy to use: drag a file onto the source bar (or use the file chooser) and hit convert. Of course, you can also change the quality settings and the output filename if you like.
It uses GStreamer, so it can convert (almost) any file which Totem can play
It can deal with audio-only files, video-only files, and files with many audio tracks (such as DVD rips with a commentary track).
Thanks to the magic of GStreamer, metadata (for example, title and artist info on an MP3) is preserved
Adheres to the Gnome HIG as much as possible
The official website is no longer available. Last version, 0.3.3, released on 24 May 2010, can be still downloaded from Wayback Machine and Launchpad.