| 摘要 |
There is provided an optical recording medium of a type in which a light beam is incident from a protective layer side which strikes a balance between a high track density and excellent mass productivity and which comprises a support substrate; a protective layer with a thickness smaller than that of the support substrate provided on a light beam incidence side; and a recording layer formed between the support substrate and the protective layer, wherein the recording layer comprises a concave portion as a gap between recording tracks and a convex portion as a recording track having a thickness greater than that of the concave portion and formed so as to convex toward the protective layer.
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