^ try this s/w called
HJ Split to join these files. I think that's how they might be archived here.
I did not try it with these specifically, but I did try it the other day with some other split archive and the freeware reassembled the big clip for me so that i could watch it.
I'm guessing the video in this post was an HJ Split archive or something. Not absolutely sure though since I did not download the files in this thread.