Just a quick note to add that j just released another experimental thusnelda build of the tool[1]. Thusnelda (that's Theora 1.1 for those not paying attention) is not yet stable, but if you'd rather have more quality instead of a safety net, go ahead and use it. -Ivo [1] http://v2v.cc/~j/ffmpeg2theora/ffmpeg2theora-0.24-thusnelda.exe