recovering kurzweil formatted floppy disk

The Kryoflux GUI has an option for that, with the caveat that “density line low/high” refers to the logic level density signal, not how a drive interprets it. Drives often have no media density detection and the density signal must be driven appropriately by the controller. With 5¼″ media it gets a lot more complicated. But if everything were easy, life wouldn’t be very interesting. 3½″ drives always rotate at 300 RPM and usually automatically handle media density based on the floppy itself. Imaging 3½″ media is relatively simple because PC 3½″drives are straightforward (well, let’s omit the special Japanese 1.6M media).

There is a distinct impression that Kryoflux was designed to deal primarily with Amiga and C64 floppies, and although PC floppy formats present absolutely no difficulty for the Kryoflux hardware as such, using the software for archiving standard PC 5¼″ media is very far from simple. After imaging a few dozens of floppies, I can say one thing–Kryoflux is surprisingly difficult to use with PC 5¼″disks. Now I’m finally able to use it beyond verifying that it’s not completely broken. Last year I finally bought a Kryoflux, unfortunately in the middle of moving house.

Recovering kurzweil formatted floppy disk