CD Cracking Uncovered: Protection Against Unsanctioned CD Copying (Uncovered series)

Negative Starting Address of the First Audio Track

Here is another dirty trick: To protect audio CD against copying, edit the TOC by setting the address of the first audio track so that it points to the area preceding the Lead-in. In other words, assign it a negative offset (Fig. 7.2).

Fig. 7.2: The negative starting address of the first audio track prevents disc playback on PC CD-ROM

This protection is cracked in a way similar to those considered before. Therefore, we won t concentrate here on a detailed discussion.