don't see a difference. made a test: encoded a song using vorbis, lame, radium, and blade. except for blade all files had the same size and the same quality. I encoded at 320. of course, there might be differences at lower bitrates, but why would anybody encode at lower bitrates? don't you have enough space on harddisc? a 320 kbs file is approx. 10 mbs, not much. and the download is not a problem either, I always download 192-320 kbs files from fasttrack, and the download is always very fast. so for me it doesn't matter, which encoder, with one exception: blade sucks