Read-only optical disc medium and method of fabricating the same
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United States of America Patent
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Jun 28, 2011
Grant Date -
Aug 7, 2008
app pub date -
Jan 31, 2008
filing date -
Feb 1, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A read-only optical disc medium is disclosed. The disc medium includes: an information recording area in which information is recorded by means of an embossed pit array formed in a convexo-concave shape having a reflective layer deposited thereon; a test writing area which is used for test write recording of a mark formed by dissipating or decreasing the reflective layer; and an additional write area in which a record data string is formed of a mark by dissipating or decreasing the reflective layer under a recording condition decided in accordance with a result of test write recording performed in the test writing area.
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