How can I reduce the file size of an XVID AVI without re-doing it?

[nic2k4]

I need to cut down the file size of an AVI I made, but I don't have the source anymore. Is there something like DVDshrink for XVID or maybe something else that can split an AVI in two. I could redo it using the AVI as source, but I'm afraid it wouldn't come out too good starting with an already compressed file.

[Baldrick]

you can recompress using avi recomp or autogk or cut with virtualdub or virtualdubmod(select video->direct stream copy, cut, file->save as avi...for more detailed explantions just click on the tools for guides)

[nic2k4]

Thanks, I think the virtualdub trick will do it.