Robuta

https://data.epo.org/publication-server/rest/v1.2/publication-dates/20020327/patents/EP1191519NWA2/document.html Method and apparatus for storing and retrieving information using optical data storage media -... Method and apparatus for storing and retrieving information using optical data storage media - Patent 1191519 optical data storagemethodapparatusstoringretrieving