Test the dvd on the hard drive to make sure it is playing correctly after you process it through CCE, but before trying to burn to a disk. Play it with VLC media player, or whatever dvd-video player you prefer. How exactly are you using CCE anyway? DVDRebuilder perhaps?
To make an ISO of the resulting dvd, use ImgBurn. When you start ImgBurn click on [I]Create image file from files/folders[/I]
By the way, DVDShrink is horribly outdated as a ripping/decryption program. I suggest you go to DVDFab HD Decrypter. It is the free section within DVDFab and will continue to function even after the trial for the main part of DVDFab expires.