lol sorry i see now,, you can use dvd shrink to make copys from that file.. here is the site to get it http://www.afterdawn.com/software/video_software/dvd_rippers/dvd_shrink.cfm , hope this helps..
If you have Nero, just use Nero Express and copy the DVD. If it was done correctly with the first copy, then there should be no DRMs and should copy easily-no compression needed.
I tried dvd shrink, dvd fab, ripit4me, clonedvd....none of them worked. Any suggestions? Tried to purchase Nero Express and the website does not allows me.