While attempting to make backup copy of "Are you smarter than a 5th grader?" DVD game, I find that two files in chapter, VTS_15_0.BUP and VTS_15_0 (an IFO file) on the original disk are 18,432 bytes while they end up being 20,480 bytes once CloneCD had duplicated them. The end result is that the cloned DVD does not advance into the game from the 'select classmate' portion. I suspect that this difference of file size is keeping the game from running. Had anyone else seen this? Is there a workaround? thanks for any help.