From the viewpoint of production, Parental Lock is similar to Multiversion. Parental Lock makes it possible to cut scenes which are deemed unsuitable for children, or to automatically replace them with other materials, and achieve seamless playback.

For example, especially violent or sexually explicit material can be replaced with scenes suitable for children, and which blend in as if they were the original material.

Because 8 different Parental levels can be implemented, the rating systems of different countries can be accommodated. Which visuals are to be played back when Parental Lock is used is fixed on the disc.

When adults wish to view the original scenes, the method will vary depending on the product, but in most cases it will be necessary to input a password on the setting screen which is displayed either by pressing a concealed button or by pressing several buttons simultaneously on a remote controller. The password can be set and changed from the player.