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800k Floppy Drive Reads 400k But Not 800k

DontGetHit

Active member
So I have an 800k floppy drive from an SE that has been cleaned and lubed. From my experience, 400k disks work fine but 800k disks do not work about 70% of the time. When the disk is inserted I get the error that the disk is "damaged". So this leads me to believe that whatever triggers the drive into knowing that what size disk it is, does not always work. But what does that? An interesting thing is that I can get the drive to read 800k disks more commonly by manually moving the heads to the front and then inserting the disk. For some reason making the heads return to track 0 to start reading the disk makes it more likely to work. I am stumped.
 
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