Protection device for CD/DVD, has integrated software to determine whether laser of playback equipment skips area between lead-ins, where CD/DVD is played back if it is determined that laser skips area between two lead-ins

摘要

The device has a lead-in (5), a lead free (4), another lead-in (3), a data region (2) having data such as music, and a lead-out (1) that are provided from an inner side to an outer side with respect to a central hole (6), where a copying protection of a compact disk or DVD is provided between the lead-ins. An integrated software determines whether a laser of a playback equipment skips an area between the lead-ins, where the CD/DVD is played back and ejected if it is determined that the laser of the playback equipment respectively skips and does not skip the area between the two lead-ins.