[comp.sys.ibm.pc] 720K disUsing 720K disks a 1.2M

bryan@cbnewsd.ATT.COM (bryan.k.delaney) (08/22/89)

Hello,

You should not use 360/720K at 1.2M because there is a big
difference in the Oxide formula used in them. 360/720K disks use
the same oxide formula and I have never had a problem using
360K disks at 720K. But, 1.2M disks require a different write current
than the 360/720K disks so you should not use them at 360/720K
either.  

				Bryan DeLaney
				AT&T Bell Laboratories
				Naperville IL
				att!ihlpl!bryan