Data medium has part of second memory area containing no user data to be read or required in which address data are false and/or control data deviate from or violate control algorithm

摘要

The data medium has preferably modified/encoded memory areas on a medium, each with address data identifying each area, its time position and/or other associations, user and/or control data. Readable user data are stored in a first memory area part with control data formed from user data according to an algorithm. Address data in a second part with no user data to be read or required are false and/or control data deviate from the algorithm. The data medium has a number of especially logical memory areas stored on a data medium, preferably in modified or encoded form, each containing especially address data for identifying each memory area, its time position and/or other associations, user data and/or control data. Readable user data, especially forming a software program, are stored in a first part of the memory area whose relevant control data are formed from the user data, and if appropriate further data of the same memory area, according to a control algorithm. Address data in a second part of the memory area containing no user data to be read or required are false and/or control data deviate from or violate the control algorithm. Independent claims are also included for the following: a method of manufacturing a copy-protected data medium.