Cropping mpeg2 file

[molmik]

I've converted an avi file to mpeg2. It worked fine however at the top and the bottom an artifact colour strip occured. How can I cropped these stips? Which application can be used? I've tried Virtual Dub, however it can not handle mpeg2 file, as I know.
Thanks for the help!

ps. I hope not posting an over discussed topic.

[Matthew]

You need to re-encode, and it's best to start with the original avi, re-encoding the mpeg2 file means more quality loss.

I'd use avisynth with the crop and addborder commands...

e.g. to crop 8 pixels from the top and bottom and replace with black I think it would be:

crop(0,8,X,Y-8-8) [where Y = verticle res).
addborders(0,8,0,8)

These pages may help:

http://www.avisynth.org/index.php?page=Crop
http://www.avisynth.org/index.php?page=addborders

[molmik]

Thanks