Re: Good source for "new" 5.25 and 3.5 inch floppy disks?

[winston19842005 <bjjlyates@bellsouth.net>]

On 9/20/07 9:00 PM, in article
ovOdnSyhyutUim7bnZ2dnUVZ_vXinZ2d@giganews.com, "Steven Hirsch"
<snhirsch@gmail.com> wrote:

> glen herrmannsfeldt wrote:
>> Steven Hirsch wrote:
>> 
>> (snip)
>> 
>>>> Besides, in my case I AM using an HD 3.5" drive, just in LD mode...
>> 
>>> I genuinely am not sure of this, but doesn't the drive drop the write
>>> current in LD modes?  If 3.5" drives are different, can you point me
>>> to some documentation to confirm this?
>> 
>> Yes, 3.5in drives are different.  For 5.25in the controller tells the
>> drive which density it is using, and the drive adjust the write current
>> appropriately.
>> 
>> For 3.5in the drive uses the hole (that isn't for write protect) and
>> adjust the write current.  If you put in a 3.5HD disk and convince
>> the controller to write in DD (non-HD) mode it will write DD data
>> using HD write current.  It should be readable on DD drives, though
>> I wouldn't guarantee it.
> 
> So, my statement about DD and HD 3.5" media having different coercivity was
> correct?  That's what I thought.
> 
No, coercivity was a 5.25" HD thing.

But there is the different write current to consider.