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07.004 Recently I found that some of my old 5.25" disks would not boot. A check showed splotches etched on the surface of the media. What's going on?




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This article is from the Apple II Csa2 FAQ, by Jeff Hurlburt with numerous contributions by others.

07.004 Recently I found that some of my old 5.25" disks would not boot. A check showed splotches etched on the surface of the media. What's going on?

         As you may recall, a number of the classier 5.25" diskette brands employed
(still employ?) a lubricant on their jacket liners. While the lube worked to
reduce drag and noise, it also, evidently, served as a growth medium for a
particularly nasty plastic and/or oxide-eating fungus!

     It's probably a good idea to check each of your old diskettes. Immediately
backup any diskettes with splotchy discolorations.

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