On Sun, 2006-09-17 at 15:21 -0400, Giacomo Comes wrote: > In your case the main reason for the difference in the file > size is that you didn't add b-frames. If you add 2 b-frames > the file size will be about 20% smaller. I'm not really familiar with b-frames. How do I add this in my case? I've looked through all the options for lavc that refers to b-frames, but I'm unsure. I have figured out that the bitrate reported is the max bitrate set, not the average. So if I bring the average down, it works, but it's trial and error, and re-encoding a couple of times over in some cases. Thanks Hans