Issues duplicating 8" floppies

[joshd]

I looked at your images (sent you an email about it).  Your drive has a problem with head 0.  You can see from the flux data you sent using the editor/analyzer by clicking on the "Display Flux" button.  The flux data is randomly sprinkled with bits that should not be there.  This is very common with bad media.  It could also be due to a dirty head.  Are you cleaning your heads with alcohol and soft cotton?  That's not an option when it comes to imaging old magnetic media!

And I just sent you a reply .

I am cleaning the heads thoroughly after every read,  I'm not new to this game .  I get similar results with different drives (Qume, IBM 9331) except they have errors on both heads, not just head 0.  As I've noted, I'm able to use these same drives and media with ImageDisk to duplicate floppies without errors.  I've sent along a few more images for comparison.

Thanks,
Josh