Quick AVI Joiner 

Quick AVI Joiner is an easy-to-use and powerful tool to join multiple AVI video files into one larger AVI file. The source avi files can have different frame size, frame rate, avi codec (such as XviD, DivX, MPEG4...), audio format, audio channels.
avi joiner join avi join avi file divx joiner mpeg4 joiner join mpeg4

JFuse AVI, MPEG Joiner / Mpeg Splitter 

Joins or splits media files. Merge small movie files together so they can be viewed as one clip.
mpeg joiner avi joiner avi merge avi merger combine avi combine mpeg combine mpg cut mpeg cut mpg divx joiner divx merge divx merger join avi