@textory
the df0 in my A2000 seems to have problems when writing on a floppy. When I put a floppy in it reads all the data without any failures. In case I format or copy it stops at a certain sector and the screen shows the message "bad sector".
I am sure the floppies were ok before putting them into the drive because I used them on my A1200 before.
Reading and writing are different operations, reading is much less prone to problems than writing. So if the floppy is marginal it's much more likely to fail when writing.
Also, it can happen that your A2000 floppy drive is slightly skewed (head displacement for example), and thus has problems writing disks formatted/written by your A1200.
What could I do? I wonder if anyone did come across the same problem.
A friend had A500 and A1200, the A500 had a floppy drive screwed in a way it would only write floppies formatted with that particular drive. It would read floppies from the A1200 ok.
The solution was to format the floppy with the A500 few times to make it "adjusted" to the drive. Then it could be written by the A500. The downside was that the floppy was unreadable on other systems, then.