I have friends who have spindles upon spindles worth of CDs that they use to backup information and programs. Unfortunately, these end up taking a lot of shelf space and start to clutter ones computer room. What if there was a way to reduce the size of this collection drastically. Hitachi has developed a 0.1 mm thick optical disk that can store terabytes of information. Standard CDs and DVDs are 1.2 mm thick and so this is a huge different in storage space. Imagine storing 12 disks in the space it would take to store one CD. Though the development of these is finished, currently there is no plan for commercialization.