Virtualdub adds green line in output video

[sany]

Hi!
Can someone tell me what am I doing wrong. I am reencoding an avi using h264 compressor to create an mkv the video size is 640*360 and for some reason the output file has a green line at the bottom of the video(it doesn't cover anything it's like an extra 10 pixel). Why is that, I've been reencoding with xvid in 640*480 resolution and it never did it to me before?

[CWR03]

I am reencoding an avi using h264 compressor to create an mkv the video size is 640*360
You need to use a video size in which each number is divisible by 16.

[sany]

Whoa, many thanx for the info.