Patent ID: 7643383

Claim:
An optical information recording method for recording data on an optical information recording medium that includes a plurality of recording layers, each of the recording layers having a data area, a lead-in or lead-out area, the method comprising the steps of: recording first predetermined data or second predetermined data of a data set over at least two of the data areas of the plurality of recording layers, the data set comprising user data, the first predetermined data, and the second predetermined data, and the first predetermined data being recorded before the user data and the second predetermined data being recorded after the user data, wherein the first predetermined data or the second predetermined data is recorded outside said lead-in or lead-out area; and switching from a first data area of a first recording layer of the plurality of recording layers to a second data area of a second recording layer of the plurality of recording layers while recording the first predetermined data or the second predetermined data; wherein recording of the first predetermined data or the second predetermined data is started on the first data area and completed on the second data area.