I worked a short time, and the program 'complete, all automatically, except to do some copy and paste ...
1) Splits the root folder "Logically, you can not split a single large file in the folder of the game, in two or more parts"
2) Finalize the folder split by eliminating duplicate files
3) Maximum compression, with a choice from a minimum of 1 * .bin to a maximum of 8 data file * .bin.
If I can not and I have to work tomorrow I will post in the first page.