A storage media for storage of data thereon is provided. The storage media including: a first layer, the first layer being substantially transparent to a predetermined radiant energy used for reading the data; and a second layer formed on the first layer and being substantially opaque to the radiant...http://www.google.de/patents/US7623436?utm_source=gb-gplus-sharePatent US7623436 - High capacity digital data storage by transmission of radiant energy through arrays of small diameter holes