I'm really struggling with this problem. To take the latest simple example: re-encoding an mkv (to reduce the number of reframes).

Mediainfo shows the video has: width 1280 Height 546 DAR 2.35. Which is fine.

MeGUI produces an avs thus:

DirectShowSource("F:\My video.mkv", fps=23.976, audio=false, convertfps=true)
#deinterlace
#crop
#resize
#denoise

No crop, no resize. So i open this in MeGUI encode using x264 and 10 hours or so later it spits out an apparently OK video file, but with the following attributes: width 1432 Height 610 DAR 2.35

(Just to check, i then dropped the same avs script into virtualdub and 'file information' tells me that the size of the (original) video is 1432x610.)

I seem to get this sort of problem every time i try to re-encode HD video. Can someone tell me what's going on please?