On 04/07/2016 04:56 AM, william degnan wrote:
not sure if anyone mentioned this point yet, but I
have found that the
drives destroy good disks a sizable percentage of the time. Keeping the
heads clean and testing a drive before use with an important vintage disk
is key to the longevity of the disk. I also always make a backup copy of
most every disk I use, and leave the original in a safe temp-consistent
place.
I'll go one step further and state that if you hear your drive
squealing, throw the disk away and clean the heads before you insert
another disk. Otherwise, the problem can spread like measles.
--Chuck