I have a dvd thats in iso that I would like to back up.. I am tring to use shrink and dvd decrepter it will not work any tips?
ISO format can be burned with Imgburn. Unless it is too large for the disc, you should not have to do anything else to it.
Sorry I read your question again. If this is already on a DVD, you will have to copy to your harddrive before burning with Imgburn.
If the DVD contains an ISO file and it's not a dual layer disc then simply 'copy' the disc using any burning rom. Image or ISO discs are not usually copy protected.