For this the Softwares That You Require Are
1.Virtual dub
2.Divx(optional)

1.Virtual Dub
VirtualDub is a video capture/processing utility for 32-bit Windows platforms (95/98/ME/NT4/2000/XP), licensed under the GNU General Public License (GPL). It lacks the editing power of a general-purpose editor such as Adobe Premiere, but is streamlined for fast linear operations over video. It has batch-processing capabilities for processing large numbers of files and can be extended with third-party video filters. VirtualDub is mainly geared toward processing AVI files, although it can read (not write) MPEG-1 and also handle sets of BMP images.

2.Divx
It is Required Mainly because the converted files using Virtual Dub Will Be in GigaBytes,So you Can Compress it to Small sizes below 100 mbs