Most floppy drives were like that. I mostly formatted my nominally 1.44MB disks to 1.72MB (the "unformatted capacity" is 2MB). It worked so reliably on differ

Most floppy drives were like that. I mostly formatted my nominally 1.44MB disks to 1.72MB (the "unformatted capacity" is 2MB). It worked so reliably on different drives that Microsoft distributed software on disks formatted this way: https://en.wikipedia.org/wiki/Distribution_Media_Format https://en.wikipedia.org/wiki/Distribution_Media_Format (it says there that they were harder to copy, but that's not my experience, and MS operating systems supported them directly from about the mid 1990s).