17 Sep
2003
17 Sep
'03
5:08 p.m.
On Wed, 17 Sep 2003, Don Maslin wrote:
Quite the contrary! A quick glance at an 8" disk
will tell you
its density by the position of the index aperature in the disk
^^^^^^^
That should be number of SIDES.
I do not know of ANY way to differentiate SD v DD other than
manufacturer's label, or pre-existing format.
jacket. A Single Sided disk has the aperature 7
degrees clockwise
of the 12 o'clock position, while a Double Sided disk has it
located 26 degrees clockwise of the 12 o'clock position.
In other words, SS is at about 1202 and DS is about 1307 hours.