This article discusses how museums are struggling and adapting to the digital world. It has some practical advice on the archiving and substituting phase of digitization. Find out how here . Univ. of Del. This excellent collection of resources explain how and why CDs and DVDs work.
Explanations cover basics of the science and the technology.
One intriguing slide show - the manufacturing process used to stamp CDs. Here's a presentation of Moore's Law past, present, and likely future. Includes Moore's original plot, and some forecasts of future speed and power. Managing Media Assets by Companies - the first step in digitizing marketing processes.