DVD Decrypter is a software application that can create backup isc images of the DVD-Video structure of DVDs. It can be used to image any DVD, but controversially it is especially useful for decrypting copy-protected movies. The program can also burn images to disc. CSS decrypting software (such as DVD Decrypter, AnyDVD, Smartripper, 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.