Hi to all you Snow Leopard adopters!. Okay, so you may or may not know, that Unix systems, including Mac OS X, have the same native functionality as the application "Split & Concat" (which currently DOESN'T work on Snow Leopard!). Here is what you do, to join your .001, .002 etc files: 1/ Launch "Terminal.app" & cd to the location of the .001 .002 .003 (etc) files, that normally require "Split & Concat" to join. Eg, if you download to the default location - ~/Downloads, type: Code: cd ~/Downloads 2/ do: Code: ls ... to show all the files, then do the following: Make sure you know what filetype the RESULTING file will be, afterwards; for example: Code: File1.avi.001 File1.avi.002 FIle1.avi.003 File1.avi.004 ... would mean that the RESULTING file, will be "File1.avi", so what you would need to type into Terminal would be this: Code: cat File1.avi.001 File1.avi.002 File1.avi.003 File1.avi.004 > File1.avi Rinse and repeat, adding as many parts as there are to your split file, to the command, as necessary. If there are five parts, just add them ALL, sequentially, as shown above. Who needs Split & Concat, eh?!