I stopped using Nero at version 7, so can’t answer your question directly, but it is a very simple thing to do with ImgBurn. ImgBurn is free to download and use. When you first start it, you will be given the option to make an image file from a disk or an image file from files found on the hard drive. www.imgburn.com
By the way, it cannot make an image file of an encrypted disk. You have to decrypt those and rip to the hard drive first.
Edit: Too late! But now you have two ways to do this.