getting info from video formats

Hi.

I want to enable video and flash for my CMS, but that requires that i can
read at least the dimensions of a video file

ImageMagick's "identify" command supposedly reads AVI and MPEG, but i can't
get it to work on my avi's:

C:\Users\rene\Documents\Downloads>identify

identify: Not enough pixel data
`'.


So if ImageMagick isn't the tool to use for video files, i wonder if there
is any other tool that i can use to determine the size of video files.

I'd like to be able to read as many of the major video formats (AVI, XVID,
DIVX, QT, etc) as possible.