Not quite, the ST floppies were DD (double density). One problem that could occur is that low-end ST configurations - especially the 260ST - were delivered with

Not quite, the ST floppies were DD (double density). One problem that could occur is that low-end ST configurations - especially the 260ST - were delivered with a single sided floppy drive (SF354, 1 side, 80 tracks, 9 sectors of 512 byte per track, giving 360 kB) instead of a double-sided drive (SF314 with 720 kB). PC HD floppy drives also have 80 tracks per side, but use twice the data rate (storing 18 sectors of 512 byte each per track) and thus require floppy disks with a different magnetic coating that can handle the higher frequencies. This can also cause problems with data retention and reliability when using 1.44 MB HD disks in DD drives for the ST. One problem with floppies formatted with early TOS releases (1.0 and 1.02) was that these used a Media Description Byte (offset 0x15) in the boot sector which confuses DOS/Windows system even though the file system format used is FAT12 or FAT16. This was fixed in TOS 1.04. Details at https://www-user.tu-chemnitz.de/~heha/basteln/PC/usbfloppy/floppy.chm/ https://www-user.tu-chemnitz.de/~heha/basteln/PC/usbfloppy/f...