Problem with ffmpeg or the source?

[Shevek]

On 17 December 2010 16:49, Andy Bircumshaw <andy at networkned.co.uk> wrote:
>
> I guess I associate "cropping" somehow with aspect ratio, because the message's reference to that reminded me of this thread on the BBC iPlayer forums:
> http://www.bbc.co.uk/dna/mbiplayer/NF13735683?thread=7927082
>

This thread on the ffmpeg list is quite relevant to this I think:

http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2008-September/053231.html

Looks like its actually a h.264 issue?