high density diskettes/low density use??

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2 total messages Started by Henry Schaffer Fri, 31 Oct 1986 13:15

#8679

Author: Henry Schaffer
Date: Fri, 31 Oct 1986 13:15

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One of our faculty bought a box of Verbatim high density (1.2 Mb)
diskettes.  He figured they would work in place of the DSDD diskettes
he had been using on a Televideo 802 and a modified Apple II, both of
which have been happy with the ordinary DSDD soft sectored diskettes
used by IBM PC's.  

Well, they wouldn't format on either machine, but they worked fine
on the 1.2Mb (high density) diskette drive of a PC/AT.

How can this be?

--henry schaffer  n c state univ

Re: high density diskettes/low density

#8710

Author: berger
Date: Mon, 03 Nov 1986 22:42

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The oxide coating on a high density disk is designed for a different
flux density.  The gap in the heads on the two types of drives are
vastly different in size.  It's no surprise that the disks won't
format with a DSDD drive.

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