Optical recording medium

Details Optical recording medium Optical recording medium

1996-04-26

2000-09-05

McPherson, John A.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Radiation sensitive composition or product or process of making

43027013, 430945, 428 644, 428 645, 369283, 369284, 369288, G11B 724

Patent

active

061140872

ABSTRACT:
An optical recording medium comprising a substrate having a pre-groove for focusing and tracking servo operation, and a recording film formed on the substrate, the recording film having optical properties which change in response to the application of at least one of a light beam or heat to a portion of the recording film.

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