DVD Decrypter is a freeware program that can create backup disc images of the DVD-Video structure of DVDs. It can be used to image any DVD, but is especially useful for decrypting copy-protected movies. The program can also record images to disc. CSS decrypting software (such as DVD Decrypter and DVD Shrink) allows a region-specific DVD to be copied as an all-region DVD. It also removes Macrovision, Content Scrambling System (CSS), region codes, and user operation prohibition.