MP3: The Definitive Guide 
by Scot Hacker


Unconfirmed error reports are from readers. They have not yet been 
approved or disproved by the author or editor and represent solely
the opinion of the reader.


This page was updated April 17, 2002


Here's a key to the markup:

        [page-number]: serious technical mistake
        {page-number}: minor technical mistake
        <page-number>: important language/formatting problem
        (page-number): language change or minor formatting problem
        ?page-number?: reader question or request for clarification


UNCONFIRMED errors and comments from readers:


[45]  Frames Per Second;

The formula for calculating the MP3 frame size is incorrect.  It currently shows:
    FrameSize = 144 * BitRate / (SampleRate + Padding)
It should be:
    FrameSize = (144 * BitRate / SampleRate) + Padding

There should also be mention of integer truncation in determining the frame size.
The next paragraph says that the "total size of each frame will be 417.96 bytes...".
This is really not correct.  The size of unpadded frames will be 417 bytes and padded
frames 418 bytes.  There will never be a frame with 417.96 bytes!