The later versions of the 3.5" use3d a higher coercivity disk, and held
1.4M, instead of the previous 720K.
There were some other variations of the 3.5" physical case, including a
2.8M Berrium-Ferrite disk, and 20M Flopticals.
--
Fred Cisin cisin at
xenosoft.com
XenoSoft
http://www.xenosoft.com
Does anyone have one of the IBM 2.88M 3.5" devices - we had a couple of PS2
machines with these in at work, but the drives disappeared (replaced with
1.44M units).
jim.