The 5.1 sound in Farscape is the original mix. Not a remix of an older 2.0 one. That is why it sounds so good. Now unless I'm very much mistaken, both A Call to Arms and Crusade were produced with 5.1 audio tracks, not 2.0 like the rest of B5. Thus the 5.1 tracks on the Crusade DVDs (and ACtA I...