| 摘要 |
<p>A recording medium and its recording system capable of dissipating the heat of the recording layer while recording data with a laser beam, decreasing the reproduction jitter value under a predetermined value, and increasing the margin of the erasing power of the laser beam. A recording system (1) comprises an optical recording medium (10) and an optical recorder (30). The optical recording medium (10) has a heat dissipating layer (24) made of a material, such as aluminum, having a heat conductivity in a predetermined range. The optical recorder (30) is so constructed that a laser beam falls on a light-transmitting layer (26). The heat dissipating layer (24) of the optical recording medium (10) dissipates the heat of the laser beam to suppress increase of the temperature of the recording layer (20). The relationship between the recording power Pw of the laser beam and the erasing power Pe is 0.7≤Pe/Pw≤1.0.</p> |
