Optical recording medium and method for manufacturing the optical recording medium

摘要

An optical recording medium including a substrate (1) having guide groove thereon; a first protective layer (2) located overlying the substrate; a recording layer (3) located overlying the first protective layer (2); a second protective layer (4) located overlying the recording layer (3); a third protective layer (5) of from 2 to 9 nm thick located overlying the second protective layer (4) and comprising Si in an amount not less than 35 atomic percent; and a reflection layer (6) including Ag in an amount not less than 95 % by weight. An overcoat layer (7) having a glass transition temperature of from 90 DEG C to 180 DEG C is preferably formed overlying the reflection layer (6). A method for manufacturing the optical recording medium is also provided.