An information recording disc has a control signal such as an address signal pre-recorded on a guide track which is pre-formed on the information recording disc at a position different from a track position where an information signal is to be recorded. An information signal recording apparatus for recording...http://www.google.com.tw/patents/US4802159?utm_source=gb-gplus-share專利 US4802159 - Information recording disc and information signal recording apparatus therefor
