The present invention discloses a method for reproducing data from a plurality of recording layers of an optical disc, including: detecting each connecting area of the plurality of recording layers, the connecting area being after the corresponding data area of the recording layer and adjacent to a data area of the corresponding recording layer; and reproducing the data from each data area of the plurality of recording layers. For each recording layer of the optical disc, the data area of the recording layer has a boundary determined based on the data amount to be recorded; the position of the connecting area and the position of a remaining area of each recording layer determined by the each determined boundary of the data area. Each recording layer includes a detection area for controlling the optimum power. For each recording layer, the use direction of the detection area for controlling the optimum power is different from that of the data area, wherein the data with specific patterns is recorded in the connecting area and the data with specific patterns allows a reproducer to recognize the connecting area.