[vcf-midatlantic] Bad disks

Jason Howe jason at smbfc.net
Wed Apr 19 01:43:58 EDT 2017

Agreed that it may be the drive.  When I've seen issues across a bunch of 
disks all of a sudden, usually a quick swab of the head clears the issue 
up.  For some reason this happens more with my Apple II than my Atari, but 
I think its because more of my Apple II disks are of questionable 

Which brings me to my next point, it could also be the brand of disk. 
Buying NOS 3M disks, I've not had a bad one yet.  I have some NOS Control 
Data disks which make nice decorations...

Good luck!


On Wed, 19 Apr 2017, Jeffrey Brace via vcf-midatlantic wrote:

> Perhaps it is not the disks, but the drive. Have you tried formatting
> different disks from a different batch and got the same result? Also, I
> wonder about the density of the disks. Are they the same? I know that with
> some compatibility issues with some drives not working with single density,
> double density and high density.
> On Wed, Apr 19, 2017 at 12:27 AM, Evan Koblentz via vcf-midatlantic <
> vcf-midatlantic at lists.vintagecomputerfederation.org> wrote:
>> I went to format 5.25 disks from a NOS box still in shrink wrap. There
>> were 11 disks in the box ("pay for 10, get one free"). Every disk resulted
>> in a track error at a different track.
>> If you can't trust never-opened disks to be good, then how do you acquire
>> disks?
>> Is there any good software to repair the errors?
>> ________________________________
>> Evan Koblentz, director
>> Vintage Computer Federation
>> a 501(c)(3) educational non-profit
>> evan at vcfed.org
>> (646) 546-9999
>> www.vcfed.org
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> -- 
> Jeff Brace - ark72axow at gmail.com
> Sent from my Commodore 64
> ========================================================

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