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Erase Detection and Error Recovery for Optical Files Disclosure Number: IPCOM000036958D
Original Publication Date: 1989-Nov-01
Included in the Prior Art Database: 2005-Jan-29

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Related People

Kulakowski, JE Means, RJ Tayefeh, M Sims, GF [+details]


Rewritable optical disk drives using Magneto-Optic (MO) media have a unique characteristic when compared to magnetic DASD or tape devices. The drives must erase the MO media prior to writing. Since the write operation occurs on a second revolution and the media is removable, the media can be left in the erased state after a power loss situation or if the disk is physically removed prior to completing a write operation.