On Donnerstag, 3. Januar 2019 15:20:10 CET Francesco Messineo wrote: > On Thu, Jan 3, 2019 at 3:13 PM Gerrit Heitsch <gerrit@laosinh.s.bawue.de> wrote: > > the (german) user manual that came with my 8050 back then mentioned > > 'single density' as the disks required. Not that I ever tried that, > > always used DD. > > Also SD didks don't really "exists", in the sense they are the same > original 300 oersted media. If you record it with FM at 125 Kbps, you > get > the so called "single density". Densities rather refer to the > modulation scheme used, rather than the actual media used. > SD/DD/QD is the same media, with different mechanisms (the 48TPI vs > 96TPI vs 100TPI mechanics/heads) and with different modulations. Thanks for pointing that out, that is my understanding as well. And thus my question, why the drives still work with 5900bpi media.... Probably, as mentioned in another post here, quality of the media improved over time so more bpi were possible. > Again, I suggest reading the fine informations contained here: > http://www.retrotechnology.com/herbs_stuff/drive.html This does unfortunately not answer my question... AndréReceived on 2019-01-04 21:01:04
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