-oac copy -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=10000:psnr:vhq:vpass=1 /mnt/JFS/O30.avi -o O30-v5005-vhq.avi Pos: 60.0s 1500f (99%) 14fps Trem: 0min 19mb A-V:0.040 [2217:448] Video stream: 2217.400 kbit/s (277174 bps) size: 16619410 bytes 59.960 secs 1500 frames Audio stream: 448.000 kbit/s (56000 bps) size: 3388000 bytes 60.500 secs PSNR: Y:48.18, Cb:49.54, Cr:50.71, All:48.73 But: -oac copy -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=10000:psnr:vpass=1:vhq -vop crop=720:426:0:74 /mnt/JFS/O30i.avi -o O30-vhq-crop.avi Pos: 60.0s 1500f (99%) 14fps Trem: 0min 18mb A-V:0.040 [2152:448] Video stream: 2152.284 kbit/s (269035 bps) size: 16131372 bytes 59.960 secs 1500 frames Audio stream: 448.000 kbit/s (56000 bps) size: 3388000 bytes 60.500 secs PSNR: Y:46.54, Cb:48.19, Cr:49.34, All:47.15