Are These Floppy Diskettes Dead or Am I Missing Something? (Question)

Problem / Question :questionmark:

I have a couple of floppy disk holders lined with 3.5" floppies that I brought home from my mums last year - most of them are blank, but are fully working.

However I have a stack of 10 blue diskettes from "PC Line" - labelled as "3.5 DS DD 1.0Mb"
Whenever I insert any of these into my test-drive (which is a generic USB floppy drive), I get a very slow response and if I run formatting software, it takes 60+ minutes to run a scan before just reporting an error.

I would simply put this down to it being 30 year old hardware, but it seems too coincidental that it's all the blue PC Line diskettes - all my other various brand disks all read and write just fine. I also noted that they are labelled as 1.0Mb opposed to the standard 1.44Mb size, which adds a variable to them.

If I run a format through explorer, it attempts to comply, but then reports the disk is protected(?)
I've attached a couple images below, anyone have any clue or idea what could be causing this or if I'm missing something with these diskettes?

Many thanks in advance!

.

https://preview.redd.it/fwlrtcmvp87h1.jpg?width=3060&format=pjpg&auto=webp&s=d372bc3aa9c960708e8163c8249a0df139ed202e

https://preview.redd.it/txyyfbfwp87h1.png?width=709&format=png&auto=webp&s=343f387745f3f7268d00c8f74412a446754063f1

Posted Jun 14, 2026, 12:16 PM UTC

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