Data Storage Model for Laser CDs

In this paper, we present an analysis of the data capacity for different types of laser disc technologies. Two design factors, laser wavelength (infrared, red or blue) and disc drive mechanics (CLV or CAV) are studied, and brief introductions to these two design factors are given. Moreover, diffraction, technical data and background information about disc drive mechanics are discussed, the conclusion is drawn that CAV-type is more than CLV type of capacity, consistent with its production principles.