A new cylindrically shaped optical data storage medium based on adhesive tape-concept and first results

Many efforts have successfully been made in recent years to increase the storage capacities of optical discs from CD/DVD to HD-DVD using blue laser diodes. At the same time many consumer products became smaller and consequently small optical and magneto-optical discs were brought to market. In our search for new materials for optical data storage, we found tesa-film, a conventional adhesive tape, to be suitable for this purpose and in conjunction with a new geometry, our concept offers big advantages in the development of geometrically small write-once memories with a capacity of 3-6 Gbyte: tesa-film is used as a multilayer recording material forming a cheap cylindrically shaped optical data storage medium.