8 May
2001
8 May
'01
7:22 a.m.
On Tue, 8 May 2001, Tony Duell wrote:
Intertec (Superbrain) called their format "QUAD density" when they went to
double sided on their MFM 48 tpi.
So, then when they came out with a 2 sided MFM 96 tpi format (720K), since
they had used up the name QUAD, they called it "SUPER density", which they
abbreviated "SD"!
--
Grumpy Ol' Fred cisin(a)xenosoft.com
What is DSQD?
Double Sided Quad Density??
Yes. It generally means (on 5.25" disks) MFM
recording at 96tpi (so 80
cylinders).
Question : What would you call single density recording (FM) at 96 tpi on
such a disk? Givem that 'double density' normally means MFM recording at
48 tpi