An information carrier having a surface upon which the information is stored. The surface having a first series of lineal regions and at least a second series of lineal regions with the second series being spaced from the first series of lineal regions. The first and second series of lineal regions are...http://www.google.com.tw/patents/US4796098?utm_source=gb-gplus-share專利 US4796098 - Banded and interleaved video disc format with duplicate information stored at different disc locations