winston19842005 wrote:
Steven Hirsch wrote:
So, my statement about DD and HD 3.5" media having different coercivity was correct? That's what I thought.No, coercivity was a 5.25" HD thing.
Actually, coercivity is a physics thing. It's a measurable property of magnetic materials. Now, whether the various types of 3.5" media differ to any extent and whether those differences are significant, that's another issue.
Write current is precisely the characteristic that one would adjust to best utilize media of a specific coercivity, since the magnetic field at the head is proportional to the current.
I'll have to go off and digest this stuff some more. Steve