Re: Apple 3.5" Diskettes

[Jack Countryman <jcountry@seidata.com>]

The other way of creating a relatively unique disk was to use the
PCTransporter 5.25 drives under ProDos or GS/OS.  That gave you 360K
double sided diskettes that only another such system could read....

David Wilson wrote:
> 
> obsbedia2@aol.com (Obsbedia2) writes:
> >When I took an Apple ][ repair workshop back in 85 or 86, a key note was
> >changing the drive speed when using the teacher's data disk.  This way, even if
> >the students got a hold of the grading records, they couldn't get it to be
> >recognized by the computer.  (This was also presented as an April fool's joke.)
> 
> I seem to recall in A2-Central the idea of reversing the spindle motor in
> a Disk ][ to make disks that were unreadable on other drives.
> --
> David Wilson  School of IT & CS, Uni of Wollongong, Australia