| 摘要 |
The recording layer of a DVD is at least partially or entirely positioned at a distance T<SUB>7 </SUB>of less than 0.4 mm with respect to the second surface. Therefore, when the optical recording medium of the present invention is clamped in a drive, the recording layer has a "higher" position. The layer structure of the optical recording medium is a feature in reducing the thickness of the disc in an area of the recording layer. In particular, a thickness T<SUB>1 </SUB>of only 0.4 to 0.7 mm is possible while remaining the reliability of the optical recording medium (i.e. without reading problems in most or all drives). Further, it is achieved that the optical recording medium may have only one substrate, e.g., one disc of polycarbonate, whereas the other side of the recording layer is covered by a protective lacquer.
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