I tried downloading a piece of software that promised it could do that, but it was sharware and only would do up to 5 mb chunks unless I paid. Is there any other software that could do that?
VirtualDub, use the sliders to select the end part of the movie and delete that and save the AVI as "1st part of the movie.avi". Load the original one and do the same for the beginning part of the movie. Remember to check both Video and Audio to Direct Stream Copy.
IMHO, the easiest way it to use this excellent program: http://ia.microdee.net/ AviSplitCalc it uses nandub to do the splitting. works great