Applesauce FDC

Chuck Guzis cclist at
Tue Nov 2 14:58:27 CDT 2021

On 11/2/21 12:13 PM, dwight via cctalk wrote:
> The trickiest protection I've seen is where there is a hole punched
> through the disk on one track. The idea is that the protected program
> writes to that track and expects to see a failure to read that
> track.

There were more floppy protection schemes than you could shake a stick at:

The Apple II ones were interestingly devious, particularly the "spiral
track" one.

At any rate, lots of stories there, both in creation and defeating.


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