28 Mar
2023
28 Mar
'23
3:31 p.m.
Sure; consider the very common Samsung SFD-321B,
particularly page 5:
....
Another type of "tri-Density" drive is the
fairly common Teac FD-235J,
which can do 720K, 1.44M and 2.88M. I've got a couple installed in
older systems.
Chuck,
I don't know if we are talking about different things? You are speaking about a 3 Mode
drive that allows 1.2MB on 3.5" drives. I am asking about a Tri Density (as in SD,
HD, ED, TD) drive. Supposedly these drives were going to use longitudinal recording (vs.
the perpendicular recording used in ED drives) to fit 12.5MB on a 3.5" disk. I had
linked a press release in the OP:
www-computerwoche-de.translate.goog/a/hitachi-maxell-bietet-nec-neue-12-5-mb-floppy-an,1155888?_x_tr_sl=de&_x_tr_tl=en&_x_tr_hl=en&_x_tr_pto=wapp
I always thought the Mode 3 drives recorder 1.2MB on a standard 1.44MB floppy (kind of
like how QD drives recorded 720KB on a 1.2MB disk).
The drives were going to be called: PC FD810.1. Doing a Google search bring up some
pictures of disks so maybe the drives did make it out in Japan?
https://auctions.c.yimg.jp/images.auctions.yahoo.co.jp/image/dr000/auc0312/…
Or am I missing something?
-Ali
