sounds like you're refering specifically to Emperor: Battle for Dune then
it may not be possible in this case, as there is 1 install CD for this game, and the other 3 CDs are for the 3 houses, Atreides, Harkonnen and Ordos.
obviously, each house has their own movies on their own CD. obviously the first movie file is called MOVIES0001.RFD for each house. the file sizes are different because they are different movies. putting a second or third of these files into the same folder would overwrite the file already there, so you would end up with only one movie for one house, and that same movie would play for every house (so the Atreides movie would play for the Harkonnen and Ordos houses too, not good)
if you renamed the files, the game will not be able to find them, so without extensive reprogramming of the game, you cant put this one onto DVD
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Honda CBR400RR