There is an interesting utility for vorbis which optimizes the huffman tables so that a vorbis file is losslessly ~3% smaller. As we speak the discussion rages over at xiph I've been playing with it a little and it indeed does work. However, when the optimized vorbis file muxed into video, it results in the same file size as the unoptimized file. I was wondering if this is a problem with oggmux, oggDS or just the nature of muxing. I had to go through the trouble of downloading the ogg headers to compile it, so I figure I might as well attach the exec for people to try out.