Again, just like with the games, I need to know that any dvd I make into an iso (using DVD Decrypter) is fine regardless of any scratches.

Are you curious on ways to convert your DVD to an ISO file? An app called WinX DVD Copy Pro is worth a look. Here's how it works.

I haven't had a chance to test it out yet, but BDlot DVD ISO Master looks quite good in that it can decrypt copy-protected DVDs without using any third-party programs such as AnyDVD and is free.