Browse Prior Art Database

Erase Detection and Error Recovery for Optical Files

IP.com Disclosure Number: IPCOM000036958D
Original Publication Date: 1989-Nov-01
Included in the Prior Art Database: 2005-Jan-29

Publishing Venue

IBM

Related People

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

Abstract

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.