On Wed, 19 Oct 2011, Charlie wrote:
On 10/19/2011 12:37 AM, jacobst wrote:
in the 80s I had an Apple II+. with a disk II drive. (Actually still
have it, but it is boxed up).
I wanted to get back into the Apple stuff, so I bought a IIgs on eBay
that came with a duo disk.
After setting up the IIgs, I am finding that most of my old 5.25 disks
(not all) are not readable by the duo disk unit. the ones that work
seem to work very reliably, but for the ones that don't, I am lucky if
I can get a catalog listing on them once in several tries. I am not
sure if it is the duo disk not working, or if it is just the floppies
are just too old.
How can I tell if the problem is the duo disk unit, or the floppies
being too old? What is the life expectancy of the data on the floppy
disks? Are there any options on getting these old floppies to read so
I can get the data off?
Thanks.
Is your Duodisk attached to the smartport? If so it may need to be
modified.
http://support.apple.com/kb/TA46264
If not it is still more likely the Duodisk is the weak link. If kept
in a relatively dry environment 5.25" floppies last longer than the
drives you put them in.
Do they go out of alignment? Or was the original drive the disks were
made on out of alignment, and while working fine, writes disks that
aren't compatible with a properly aligned disk? I don't know, I'm just
thinking of a possibility.
Michael