For example, a modded PC HD floppy drive is still unable to read HD floppies on the Amiga because it cannot deliver the data at the rate accepted by Paula, but it can read and write DD floppies, *and* it can write to HD floppies with DD density just fine. That does not hold for the average DD floppy drive.
Thanks for the info

I don't have enough money to buy Gotek right now

Then modifying PC floppy drive for Amiga can write properly to save data for long time, right?
I use old Maxell floppies, made in japan.
I can only say for sure that the Chinon FB-354 drive is able to write to HD disks, because I have used one of these for years in my A-500 and I have lots of HD disks which I have written to years ago, and they all still work like a dream
I have also heard that it might help with some drives if you cover the HD hole. I assume that some drives adjust the magnetism field strength according to the sensor for the HD hole, so that it will bring up more power if it detects a HD disk.
I have Chinon FB-354 too =/