hj join split

It can only join, split and calculate checksums.

Split and join large files.

Free and advanced PDF Splitter Merger. Join PDF, merge PDF, split PDF.

AVIedit allows you to join and split avi files, extract frames and do whatever.

A little program with a simple interface that can Split & Join files.

Dexem is a command-line utility for split or join dual-executable files.