Information recording disc pre-recorded with address and pseudo address signals

摘要

An information recording disc comprises a guide track, an address signal recording portion arranged in each track turn of the guide track and pre-recorded with an address signal, and a pseudo address signal recording portion arranged in each track turn of the guide track adjacent a corresponding address signal recording portion provided in a track turn of the guide track adjacent thereto. The recording length of the pseudo address signal recording portion is selected approximately equal to the recording length of the corresponding address signal recording portion.