Phase-change optical recording medium and recording and...

Details Phase-change optical recording medium and recording and... Phase-change optical recording medium and recording and...

2005-12-14

2009-12-01

Nguyen, Hoa T (Department: 2627)

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

Reexamination Certificate

active

07626915

ABSTRACT:
The phase-change optical recording medium having a substrate, and at least a first protective layer, a recording layer composed of a phase-change material, a second protective layer and a reflective layer disposed on the substrate in this sequence has a maximum recording linear velocity VHof 20 m/s to 60 m/s, a range of linear velocity recordable even when the recording linear velocity is continuously changed of 0.3VHto 1.0VH, and no occurrence of crystals causing a reproduction error in recorded marks.

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