| 摘要 |
<p>An optical recording medium capable of restricting warping occurring during an extended use, and a production method therefor. The optical recording medium comprises a substrate (13), an optical recording layer (14) formed on the substrate (13), and a light transmitting protection film (17) formed on the optical recording layer (14), wherein the protection film (17) includes a polymer film (16) having a heat shrinkage of up to 0.02% and a bonding layer (15) for bonding the polymer film (16) to the optical recording layer (14). The polymer film (16) is produced by a melt cast method, and annealed in advance, or preferably has a residual solvent in a film of up to 0.3 wt.%.</p> |
