On 11 Jul 2018, at 09:33, Terry Stewart via cctalk
<cctalk at classiccmp.org> wrote:
 Just my experience,  I once did a trial where I took two identical 5,25
 inch disks of the same batch from the same manufacturer.  These were clean
 disks which both formatted and verified just fine, but I wanted to see if
 IPA did indeed damage the disk.
 One I swabbed one with 75% IPA, the other with warm water with a touch of
 dishwashing liquid.
 On checking the IPA swabbed disk now showed a few damaged sectors.  The
 water/detergent one did not.
 It's not scientific (just one rep) and I was quite aggressive with the
 wiping.  However, it made me steer away from IPA.  Immersing the platters
 in warm water with a touch of detergent, and gently wiping (then air
 drying) works well for me when cleaning "dirty disks".
 Terry (Tez)
 On Wed, Jul 11, 2018 at 8:17 PM, Steve Malikoff via cctalk <
 cctalk at classiccmp.org> wrote: 
Thanks everyone!
I found another box so I?ve got 20 ?new? ones now. I?ll try all of the above methods and
see where it gets me. Pity I don?t have any spare jackets but my plan was to attempt to
get the CPT to boot and since the original boot disk has damaged sectors 0-3 and the
previous owner didn?t make a copy I?m a bit stuck anyway.
It was good to be able to see actual documents on the data disks with ANADISK though,
cheers Chuck :)
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