DaveDDS wrote on Today, 01:01:

I don't see why you couldn't - I've done it on 5.25" disks a few times - 3.5" seem more delicate and would be easier to damage. […]
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DustyShinigami wrote on Yesterday, 17:33:

Is it not possible to take a diskette out of it's case and put it into another? ...

I don't see why you couldn't - I've done it on 5.25" disks a few times - 3.5" seem more delicate and would be easier to damage.

Also, make sure you use the same case type as the original - there's an extra hole in 3.5" HD media that's not in DD media - that's how the FDC knows what
date rates it should try.

I tried it a few times with spare 3.5” disks and got the same result each time. 😕

Um, what’s HD, DD, and FDC? 😅 I’m not even sure what the original game disk uses.

I discovered the box of spares I ordered were all ‘corrupted’, or faulty, according to NFORMAT, save one or two, so I’ll need to order some more. Incidentally, what are the best brands? These were Maxwell, but they felt a bit cheap.

DustyShinigami wrote on Today, 01:33:

Um, what’s HD, DD, and FDC?

HD = High Density - can store 1.44M (1.2M for 5.25")
DD = Doubke Density - can store 720k (360k for 5.25")
FDC = Floppy Disk Controller - the PC hardware that talks to the floppy drives.

DD disks have only one hole in the edge at the back, usually it has a slide to allow it to be covered - This enables Write Protect

HD has an extra not-coverable hole on the other edge at the back (away from slot side) - this lets the drive/FDC know that it needs to use a different data rate and magnetic strength when talking to the disk - the media is also different - if you put DD media in and HD case (or vice versa) it won't work correctly (but might still appear to work in some cases)

Btw, the reason the lower is "Double"density - way back in the dark ages when floppies where first invented the data was stored a certain way which later became known as "Single" density (SD) - later on techniques were developed to store the data with less embedded clock bits which resulted in twice as many effective data bits in the same area - this was called "Double" density (DD) still later methods were developed to use higher data rates and differenr magnetic coericivity to store even more data bits "High" density (HD).

SD was never officially used on the PC ... (and many PC FDCs can't even do SD) - hence the lowest capacity disks commonly used on a PC are DD