From CD to DVD and Beyond

Summary form only given, as follows. Recording the information is a habit that goes back in time about 100,000 years, when humans produced apparently their first ornaments. Many global changes have taken places since then and have affected the way we handle the analog and later the digital information. The CD and DVD represent exponents of wonderful technologies we experience daily, but where is optical storage heading to? Will the DVD be replaced? Will holographic storage prevail? We might have some of the answers, but questions like these keep inevitably recurring.