Ade Vickers wrote:
Hi guys...
I have a truly huge number of old 3.5" HD floppy disks which no longer work.
Attempting to format them in DOS returns the largely unhelpful "Invalid
media or Track 0 bad - disk unusable" error message.
Same here. Pretty much
all of the 3.5" don't work reliably anymore.
But 9-tracks from the 70's are fine, 8" and 5.25" floppies are fine.
Just plain weird.