Fitting a dual layer disc on to a standard DVD?

I have a video folder that contains about 7.5GB of data. I burned it for a friend onto a DL disc with no problems. Is there anyway of burning the contents of this 7.5GB folder onto a standard 4.7GB DVD?

I have used One-Click DVD Copy do accomplish this from disc to disc and it automatically compresses everything exactly so it fits onto a standard 4.7GB DVD, but I have given the DL disc to my friend. I could get it back at some point to do the direct disc-to-disc transfer, but how can I do it going from the raw video folder to a standard DVD? Will One-Click DVD Copy do this as well?

DVD Shrink? DVD Rebuilder? both are freeā€¦