🚀 go-pugleaf

In article <JACOBS.90Jan9093359@cmos.cs.utah.edu> jacobs@cs.utah.edu (Steven R. Jacobs) writes:
=>In article <7715@nigel.udel.EDU> jacobs@chocolate.it.udel.edu (michael jacobs) writes:
=>>In article <3226@ucrmath.UCR.EDU> lulu@ucrmath.UUCP (david lu) writes:
=>>=>I just tried to format some 1.2 Meg, high density disks in my
=>>=>360K drive (as 360K), and I got the following error message:
=>>=>
=>>=>	Invalid media or Track 0 bad - disk unusable
=>>
=>>Having just had this problem, I asked around and it seems that High Density
=>>disks and Double Density disks (used for 360k) do have physical differences.
=>>
=>The person that told you this was either joking or making it up to
=>disguise their ignorance.  Physically, the two types of disks are
=>similar, with oxide covering the entire surface of the disk.  The
=>difference is in the oxide itself.  On the high density disks, the
=>oxide is a different material which requires a stronger magnetic
=>field to record information.  The heads in many 360K drives are
=>not designed to produce a strong enough magnetic field to record
=>data on the high density floppies.

I'd call that a physical difference.  It has to do with what the floppy
is made of, not on just what the floppy drive is doing.



Mike J             |  
The Grey Sysop...  |  Phone...RING!...yep yep yep yep yep!
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