In either mode, the program has options to facilitate the stripping of the CSS copy protection, User operation prohibition (prohibiting skipping over previews or "FBI Warnings" and so on), and also allows the copy to be either made region-free (the default setting) or set for any region code. Extra software (such as AnyDVD, AVS Video Converter, or DVD Decrypter) may be required to remove more recent forms of copy protection such as Macrovision Ripguard. DVD Shrink can also shrink hard disk files already ripped by programs that can overcome more recent copy protection systems, but that do not offer the 2-layer to 1-layer compression.