Videoguard it is system of coding for the digital television, developed by the British company NDS which is one of leaders in system development of coding for a digital television. Coding Videoguard (translated as the Video guard) very widespread in the world. In USA Videoguard company DIRECTV, in England BSkyB, in Europe Sky Italiy, Viasat and some other speakers uses. In Asia Star TV as uses Videoguard. The coding on present time is not opened, that is caused also by that that cards are anchored to tuners. Therefore any cracked piracy cards Videoguard and furthermore codes do not exist. The binding complicates usage even official cards VIDEOGUARD on other tuners. (Though on some tuners, for example OpenBox, it is possible to enter into a tuner any number ID).
In Russia operators does not carry out official sale of cards, preferring Viaccess.