Patent ID: 7492697
Filing Date: 2009-02-17
Classification: G11B

Abstract:
1. An optical disc recording method in which data is recorded on an optical disc using a combination of a user data area where user data is recorded, a control data area for reproduction allocated on an inner radius side of said user data area, and an outer guard zone allocated on an outer radius side of said user data area as a unit of one recording operation, wherein: a track pitch TP of said optical disc is greater than or equal to 0.3 μm and smaller than or equal to 0.4 μm, the width of said outer guard zone along a radius direction of said optical disc is greater than or equal to a value of (100×TP) and smaller than or equal to a value of (125×TP), the width of said user data area along the radius direction of said optical disc is determined to be greater than or equal to a predetermined minimum recording width regardless of the amount of user data to be recorded, and said minimum recording width is specified within a range of value from {(A+B+C)×2} to {(A+B+C)×2×2.5}, where A denotes an accuracy with which a pickup advance mechanism moves a beam spot, B denotes an amount of decentering of the disc, and C denotes an error of chucking of the optical disc.