CD Electricity

This daring individual has discovered what could possibly be the most secure way to erase data on Compact Discs…using a step-up transformer and creating a 240,000-Volt pd. That’s right, while the CD rotates in the middle, sparks arc through the metal in the disc, literally evaporating the reflecting aluminum layer, and ripping it all. As you can see, the CD is rendered transparent and unreadable. Continue reading for another video, but this time of someone destroying a CD by spinning it at 30,000RPMs.

The Compact Disc is an evolution of LaserDisc technology, where a focused laser beam is used that enables the high information density required for high-quality digital audio signals. Prototypes were developed by Philips and Sony independently in the late 1970s. In 1979, Sony and Philips set up a joint task force of engineers to design a new digital audio disc. After a year of experimentation and discussion, the Red Book CD-DA standard was published in 1980.