Hi, I'm using mencoder to do a 2 pass transcode from h264 to xvid, but it always hangs on mencoder Frozen_Planet_-_5._Winter_b00zj35r_default.mp4 -o video.mp4 -nosound -ovc xvid -vf yadif,scale=656:370 -xvidencopts bitrate=1000:chroma_opt:vhq=4:bvhq=1:quant_type=mpeg:max_bframes=1:pass=2 The 1st pass works fine. Richard