May i suggest a open source audio extractor. I have been looking for an extractor for a while now and i keep hearing post bout Audio editing programs. i see we have 2 already but i haven't seen one that could extract audio form video. Maybe some one could look in to this. AoA Audio Extractor. it is free and open source and also under the GPL license. it is also 3Mb small enough to fit on a usb flashdrive.
sorry bout not posting the link