Optical disk including wobbled guiding groove composed of pits, optical disk manufacturing apparatus, and optical disk recording/reproducing apparatus
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United States of America Patent
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Aug 17, 1999
Grant Date -
N/A
app pub date -
Apr 16, 1997
filing date -
Apr 19, 1996
priority date (Note) -
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Abstract
An optical disk having thereon intermittent spiral guiding grooves composed of a pit array, wherein each guiding groove has a wobbling side wall at either side, so that the pit array is used as a data reproduce-only area and spaces between adjacent guiding grooves are used as a data recordable area, thereby realizing a high-density optical disk having both the data reproduce-only area and data recordable area.
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