Diskettes use yet another "megabyte" equal to 1024×1000 bytes.
Microsoft (2003-05-06). "Determining Actual Disk Size: Why 1.44 MB Should Be 1.40 MB". Article ID: 121839. Microsoft. Retrieved 2007-07-07. "The 1.44-megabyte (MB) value associated with the 3.5-inch disk format does not represent the actual size or free space of these disks. Although its size has been popularly called 1.44 MB, the correct size is actually 1.40 MB."
It just so happens that I was *right* in the *wrong context*. Dick.