Imagine you want install GNU/Linux but your bandwidth won’t let you...
splitDL is a tool to download huge files using slow and unstable internet connections. It splits the source file into several parts, creates hashsums from them. The client then can download the file list and the single parts, check the files for consistency and then puts the content together again.
Please read my blog post about in which situations the script may save your butt and some more details.