Patent ID: 7061849
Filing Date: 2006-06-13
Classification: G11B,H03M

Abstract:
1. A recording method for an optical disk, which is used for an optical disk in which concave and convex areas formed as concave and convex sections on the disk substrate are arranged along a track with constant intervals, wherein the optical disk includes a recording area for recording data for a predetermined number of units n (n: natural number), the recording area placed between the concave and convex areas arranged with constant intervals, the recording method comprising the steps of: forming a first two-dimensional array by adding addition data to input data; forming a second two-dimensional array in which the length of each row is set to m (m: natural number) with a×m=b n (a, b: natural numbers) being satisfied, by carrying out a plurality of error-correction encoding processes, including at least an error-correction encoding process that forms a code sequence by using a data alignment in a diagonal direction of the first two-dimensional array, on the first two-dimensional array; and successively sending data on each row in the second two-dimensional array so that all the data in the second two-dimensional array is recorded on the recording area on the optical disk.