---- A DVD decrypter tool is used to create disc images or DVD folders with the same structures as DVD-Videos. DVD copy protection like Macrovision, CSS, region codes and user operation prohibition can be also removed by a DVD decrypter.
---- A DVD shrink tool is usually used to shrink a commercially-released dual layer 8.5GB DVD to a single layer 4.7GB DVD. A DVD shrinker usually re-encode the movie in lesser quality, or discard unnecessary content in order to fit on the single layer DVD-5 discs.
---- A DVD ripper is a software application that copies the content of DVDs to a hard disk drive, through a process called ripping. DVD rippers are used to transfer formats, to edit or back up DVD content for playing on mobile devices or media players.