help making a dixv from an mpeg1 file

[Stutz]

I am using VirtualDub to convert an mpeg1 file to divx.
I can convert a small 15sec file fine but if I try a large 45min file it messes up.
I start out with a 2.5GB mpeg1 file and end up with a 3GB+ file that I can't play. I am using the exact same setting in VirtualDub and the exact same setting when I capture the mpeg1 file. I have divx4, am running win2k and capturing with a radeon all in wonder at 640 by 480 res, I frame only and just under 8MBit/sec bit rate.
any ideas what I am doing wrong?

[Goldenaxe4000]

Stutz ??? is that your name ??
looking for a hot kusit ???
ok ... lets talk !
kodem kol ...
sorry ,
go to http://www.geocities.com/mpgtoasf
it has anything inside