14 Nov
2007
14 Nov
'07
3:50 p.m.
On Nov 13, 2007, at 11:50 PM, Chuck wrote:
Very close--I've got 3M's published specs on
all of these, if anyone
cares. And 3.5 DSHD media is fairly close to DS2D; the coercivity is
somewhat higher, requiring increased write currents, but not as
drastic as the difference between 5.25" DSDD and DSHD.
It is different enough that after a couple of years DSHD media written
on DSDD drives can very easily start to fade- had it happen on some
DSHD floppies I wrote on a 800k Mac SE several years ago (diskettes
unreadable after about 3 years).