Patent ID: 8018804
Filing Date: 2011-09-13
Classification: G11B

Abstract:
1. A method of determining an optimum reproduction condition of marks recorded on a super resolution optical recording medium, wherein a length of at least one of the marks is shorter than a resolution of a pickup of a recording/reproducing apparatus, the method comprising: recording the first mark; detecting a change in an amplitude of a reproduction radio frequency (RF) signal by emitting a reproduction beam and receiving the beam having been reflected from a position on the optical recording medium where the recorded first mark is located while varying a reproduction power for the optical recording medium; and setting a power of the reproduction beam when the detected amplitude of the reproduction RF signal is maximized as the optimum reproduction power of said marks recorded on said optical recording medium, wherein the first mark is recorded to have a length which most closely approximates the resolution of the pickup on the optical recording medium.