if you can read the disk on the ST, then it is probably because the floppy drive doesn't recognize the disk. try format a 1.44 disk on the drive to check if the work.
if it work, then toy have to buy new floppy drive. like a Thosiba, Teac.

Lol, what do i do in this case?

Note: I dont want to format...because then i lose the data

First of all, thanks for your reply and your links

I give that Chinese a try as I found one for 6 € and then I give a feedback here. I want to use it for making Atari Cubase disks. I live in Germany, that’s why I used Amazon.de

i would not bet on it, its a Chinese Floppy disk, its look like that you are in Germany due to Amazon.de,
i can see there is some IBM floppy disk on ebay, i would rather try an Ibm floppy instead of a Chinese Floppy disk, but i can't promise that it works.

http://www.ebay.co.uk/itm/1-44-MB-1-4mb … 4865f5f02e
http://www.ebay.co.uk/itm/IBM-USB-DISKE … 488362f4a2
http://www.ebay.co.uk/itm/1-44-MB-1-4MB … 3f290782e7

How about this, will this work?

http://www.amazon.de/MAIWO-External-Flo … B00PGRJZGC

no that is not strange it is because the drev does not support 720kb disk.

i have made 720kb disk under XP, win 8, win8.1. but sometimes windows just work like crap and need a reinstall.

Nope, still doesn't work, which makes this whole thing pretty strange. I tested different kinds of floppies too but got the same results.

Yeah my floppies finally work but my Waves compressor plug-ins don't. I find this pretty hilarious.

Good to hear that USB floppy is better supported in Windows 10. Thanks Microsoft!

great to hear
how about the sandberg usb floppy drev does it also work?

I FUCKEN GOT IT. You have no idea how happy I am haha.

For some reason when I updated to windows 10 yesterday the "FORMAT A: /T:80 /N:9" process worked perfectly. I have no idea why, but hey. Time to make some sweet sweet jams.

Thanks so much for the help yall.

btw i don't have any problems reading 720k-144h disks, try using an other computer to see if than could help.

hi
i am sorry that it don't work for you,

if i what to make sure that it work,
then i first i put sticky tape over high density hole,
i format it on the ST, and transfere the file from the pc to the Floppy.

make sure that the files are made under the 8.3 file naming or else the ST F..k up when you try to open it.

good luck and i hope that you get it to work.

I ended up getting the Toshiba model you're using. I'm still having problems formatting 1.44s and it can't read my old 720s.

I'm convinced it isn't the driver that's the problem anymore so I wondered what exactly your process of running something on your atari is. How you transfer the files / format the floppy and such.

My two cents:
http://www.tonmann.com/2014/08/gotek-fl … -atari-st/

ups, i listed the wrong part earlier here is the right one.
my floopy is a Toshiba model no. PA3109U-1FDD

this floppy-drev also look like it would work
http://www.teac.co.jp/dspd/product/magn … 05pub.html