Deciphering an odd floppy disk format.

Jon Elson elson at
Sat Feb 13 11:40:29 CST 2021

On 02/13/2021 11:18 AM, Mattis Lind via cctalk wrote:
> The longest flux lengths are interspersed in between more normal flux
> lengths in the actual data and I get the same type of result regardless of
> reads of the same track and between different tracks. But the relative
> frequency is much much lower for the longer flux lengths than the shorter
> ones.
The low-frequency of occurrence flux changes may be head 
switching when the write and erase current is turned on and 
off at the beginning and end of data blocks.  So, those 
should be ignored.


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