Why 1.44MB floppy is actually 1.38MB ?

[Nakis]

I have some floppies which say that they are Windows/DOS formatted Double Sided High Density 1.44MB. When I put it in my floppy drive and access it with Windows Explorer of my Win2K, it says that it's 1.38MB.
Why is that?
I definately need to fit a 1.4MB file into one diskette (I don't want to split it). What can I do?

thanx a lot

 

[WindowWizard]

Check the diskette's properties. Look at the capcity byte count. If there are no errors, the count should be 1,457,664 bytes which is the same as 1,423.5 Kbytes (1457664/1024) or 1.38 Mbytes (1423/1024). It's just the way the math is done.

WW

 

[browolf]

http://www.aroundthebay.ca/technology/faq.htm

"Q:  The File Manager is ripping me off when it formats disks! If I format a 1.2MB floppy from Windows for Workgroups, it formats to only 1.15MB. A floppy that is supposed to hold 1.44MB formats to 1.38MB
A:  First thing first! Your computer isn't ripping you off.  It is really just a math thing. 
A formatted 3"-inch high-density disk holds approximately 1.44 million bytes of information. It is quite commonly, although not entirely correctly, referred to as a 1.44 MB disk. The true definition of a megabyte is 1,048,576 bytes. The File Manager in Windows for Workgroups now uses the true definition of a megabyte in its calculations. If we were to take the 1.38 MBs your File Manager is reporting and multiply it by the number of bytes, we get exactly 1,447,034 bytes, or approximately 1.44 million bytes."

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