DVDShrink is software to backup DVD discs. You can use this software in conjunction with DVD burning software of your choice, to make a backup copy of any DVD video disc.
Why Use DVD Shrink :
Most DVD titles are designed to prevent you from making copies.
The first preventative measure is encryption. Most DVD titles are encrypted, which prevents you from either copying them to your hard drive, or if you manage to do so, being able to play the resulting files. DVD Shrink overcomes this problem with built-in decryption algorithms.
The next problem is not so easy. Most DVD video titles are simply too large to fit, without modification, onto a single recordable DVD-R disk. DVD Shrink overcomes this problem by modifying or "shrinking" the data from your original DVD.
DVD Shrink provides two ways of shrinking your DVD disk. These are re-authoring and re-encoding. You can use one, or the other, or for maximum "shrinkage", both combined.
DVD Shrink is capable of both re-authoring and re-encoding the movie. It features an intuitive user interface which makes it easy to choose what to keep, and what to lose.
DVD Shrinks allow the user to select compression level for each video track separately to obtain the desired disc size (which is usually below 4.38GB). The software is capable of producing either an ISO image of the ripped DVD, or a VIDEO_TS folder for further processing, viewing or burning
There is an excellent user guide which can be found here.