The Inner Workings of CD/DVD Drives

This podcast is drawn from the "Virtual Lab" of WeCanFigureThisOut.org. This Virtual Lab uses 3D virtual reality animations to explain electronics, microelectronics and nanotechnology. This podcast explains the miniaturized optical and mechanical components that make CD and DVD drive work. This includes a description of the clever systems that automaticaly focus and center the laser on the data tracks of the disk.