Thats fine, but Warez (the copyrighted material you might have downloaded), is strictly forbidden on this site. Thats the main rule the owner has in place and subsquently, each of the sub sections has adopted this rule in 1 way or another (Just go to the PC Forum, to see how tough the moderators are in there. The pansies, get a life and get laid!)
Anyways, I wont help you on the second problem. But as its late, and like I said, I dont have a Dual Layer Burner to see how DVD Decrypter runs on it, but the procedure should be pretty standard...
1: Go download
DVDDecrypter if you dont already have it. Install and Reboot PC
2: Launch the software, and press the R Key on your pc.
3: You will see a bunch of files. Listed on the Right Window, make sure they are
highlighted. (Edit/Select All)
4: Press that big DVD button. You cant miss it. The ISO will be ripped to your C Drive by default. Obviously you can change this.
5: Once its done ripping. Its a good idea, to close down DVD Decrypter, and restart it.
6: Once restarted, press the W Key on your keyboard.
7: See that Select Source Window? Use that to find your ISO file.
8: Now if you want to, you can burn straight to your chosen media, by pressing the previously mentioned big DVD button
Knowing my luck, I missed out a bunch of useful information (or maybe what I posted was completely wrong?), but that should be the basics of it. If you want to investigate further, check out sites like
www.videohelp.com and
www.doom9.org. Oh yeah, you might find lots of other useful information there too