dvd software problems

I'm trying to copy a dvd i own using dvd shrink and dvd decrypter. I need to compress it from the dual layer disc its on to a 4.7 gig disc. The shrink program compresses it but i can't find a way to make it write the newly compressed movie in an .iso file. I need it like this so that dvd decrypter can write it to a disc. any ideas?

Ok, after you've chosen what you want in your disc with DVD shrink, select the Back-up button or Make a back up, what ever it's called. N E Way, after the little window pops up with were you want to save the stuff, navigate through the tabs on the top of the windows and it should be the last tab that you can select how to back up the movie. You probably have it set to files, change it to ISO. Let me know if you need more help

i c nothing aobut this. i have version 3.2. i don't know if this is a newer version and for some reason that feature was taken out or what. If you have a different version it would be a great help if you could send me a copy.

After you choose amounts of compression and what to compress/keep etc, and select 'Backup' a menu comes up where under the 'Target Device' tab there is an option for 'Select backup target'. Choose ISO from the drop down list.