| 摘要 |
<p>An optical recording medium having two recording layer structures (101,201) which includes a cover substrate (100), a grooved substrate (200), a first recording layer structure (101), an intermediate layer (108), a separation layer (109), and a second recording layer structure (201). In the optical recording medium, the two recording layer structures (101,201) include a first recording layer (101) structure, and a second recording layer structure (201) between the substrates (100,200), the first recording layer structure (101) includes, in this order, a first protective layer (102), a first recording layer (104), a second protective layer (106), a first reflective layer (107), the second recording layer structure (201) includes, in this order, a third protective layer (202), a second recording layer (204), a fourth protective layer (206), a second reflective layer (207), and a ratio of a thickness of the first recording layer structure (101) and a thickness of the intermediate layer (108) is 0.2 to 1.0. <IMAGE></p> |
