In order to copy a DVD onto a hard drive, you should download and install a DVD to hard drive back up tool on your computer. Select DVD source, select the DVD target, customize DVD copy and start copying.
1 Additional Answer
One can copy DVDs onto a computer hard drive by first inserting the DVD into a DVD drive. Then open a DVD decrypter, select the DVD drive containing the disc in the source slot, and on the destination slot indicate the folder where the movie will be saved in. Finally click OK to initialise copying which may take up to ten minutes depending on the data size as well as the computer capability.