The Mobile Media Converter is a free video and audio converter for converting between popular desktop media formats like MP3, Windows Media Audio (wma), Ogg Vorbis Audio (ogg), Wave Audio (wav), MPEG video, AVI, Windows Media Video (wmv), Flash Video (flv), QuickTime Video (mov) and commonly used mobile devices/phones formats like AMR audio (amr) and 3GP video. Also, iPod/iPhone and PSP compatible MP4 video are supported.
An integrated YoutTube downloader is available for direct downloading and converting to any of these formats. Also, you can trim your clips for ringtone creation or any other purpose and crop your videos for removing up/down black bars or other unwanted parts of the image.
The program has a very easy-to-use and simple GUI (Graphical User Interface) that helps even the most amateur user. Most of the times, the only data that you must enter is the input file(s) or just drag 'n' drop the input file(s)! The 3GP and AMR formats are used by mobile phones for MMS, video and sound recordings, etc.
At first, I didn't think that it would convert .ogv video files (aka, ogg theora) to .gp3 files, or to anything for that matter. It doesn't default to recognizing the .ogv format, and I couldn't add them via it's own file manager. And it didn't really make mention of support of .ogv files. So I didn't think that it would be a simple one-step solution to putting something on my phone to watch. But it is. What worked for me (Also maybe I should mention that I'm running Intrepid, Ubuntu 8.10) is to just add Mobile Media Converter to the files properties option in Nautilus. [Open With] tab in Nautilus. It takes a right click on the highlighted file to get there, BTW.