Optical disk with rewritable and write-once areas

Optical disk with rewritable and write-once areas

An optical storage arrangement is provided where a unified optical disk (10), or other optical media, has separate Read/Write (R/W) (20) and Write Once Read Many (WORM) (15) areas. A Read/Write head or transducer selectively records data only once in the WORM area but records and re-records data in...

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Bibliographische Detailangaben
Hauptverfasser: JAASKELAINEN, WILLIAM, GREGG, LEON EDWARD, BAXTER, DUANE WILLARD
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Beschreibung
Zusammenfassung:An optical storage arrangement is provided where a unified optical disk (10), or other optical media, has separate Read/Write (R/W) (20) and Write Once Read Many (WORM) (15) areas. A Read/Write head or transducer selectively records data only once in the WORM area but records and re-records data in the R/W area. Both areas can be selectively read repetitively. The WORM area is used to store data records and the R/W area contains directories for the data records recorded in the WORM area.