However, a Double-Density-formatted High-Density disk is more susceptible to data integrity issues and can develop read errors over time, sometimes even after a few uses. These errors don't seem to be physical, so the disks themselves aren't damaged once the errors develop and you can usually rewrite the disk back from the ADF or DMS image and it will work fine again for a while. Some people say that if you write the image to the disk twice or three times first it stays on there longer. I don't know if it's true, but I do this anyway just to be safe.
I would recommend anyone who is sending out Amiga disks on HD floppies to send two copies of each one, just in case one develops an error and is useless to the recipient.
Good point Cammy! That's true.
I don't have direct experience of loss of data (I'm lucky enough to have a good backup of DS/DD disks, even if second hand ones), but data on HD disks shall be written with a stronger magnetic field by the drive head.
This is not the case if you use a double density drive, or a high density drive with the "tape trick".
Just a little fast link to check: (no Amiga related)
http://indra.com/~cliffcan/01fdd1.htm----- excerpt from page ------------
HD Diskette Risk - Lost Data!
You may say "I have been able to use an HD disk and everything works fine." The real question is - "How long will the data stay on the disk?"
In order to squeeze twice as much data on the same 3.5" disk, changes were made in both the disk drive and media (diskette). HD media is harder to magnetize and demagnetize (erase). HD drives are designed to handle this, but the DD drive in your 01 isn't. A DD drive uses a weaker magnetic field to record the data, and an HD disk may not store that data as long as a DD disk would.
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P.S. Hope you had nice Halloween
it wasn't my case... not a good beer, much probably, made me pass the night through a bad nightmare! ...maybe it's due to Halloween :-D
