After using Split & Concat for years because that was my only option to concenate files, finally a simple program that is well worth it's price! This program does not have the "Par 2" features of other programs, but the joining of files is amazingly fast, and has just enough options, such as; delete .001, .002 files after processing, and file destination. A batch processing option would make this program THE program to use, because no other joining program I know of has batch file joining. This program will be replacing my current Split & Concat, I am sick of it's annoying "donation button". This program is well priced and does it's job!