=== IBM format ===
Despite its name, the The IBM format is not only usable on PC the earliest IBM PCs as it uses 8 sectors per track and the CP/M filesystem. PC floppies use This was the FAT12 filesystem insteadformat used in MS-DOS 1.x. [https://www.os2museum.com/wp/dos/dos-1-0-and-1-1/ Source]
Another issue is that only the earliest PCs used 8 sectors per track (With MS-DOS 12.0 and 1.1). They in 1983, PC floppies switched to 9 sectors per track with MS-DOS 2.0 in 1983and the FAT12 filesystem. [https://minuszerodegrees.net/5150/early/5150_early.htm Source]
Also, [[CP/M|CP/M]] 2.2 supports the IBM format but CP/M Plus does not.