Read the INSTALL file for installation instructions.

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When Apple opened the iTunes Music Store, they licensed a technology
called "FairPlay" from a company called "Veridisc".  FairPlay is a
Digital Rights Management (DRM) system that limits a users rights on a
digital media file that they've purchased and presumably downloaded.
In the case of Apple's iTunes Music Store, when a user downloads an
audio track from iTMS, it is a "Protected AAC Audio File".  When used
as intended, these files can only be played through the iTunes program
itself.  Furthermore, a particular computer must first be "authorized"
to play the given file.  FairPlay allows up to three computers and
unlimited Apple iPods to be authorized to play the file.  As DRM
schemes go, FairPlay is only moderately offensive.

So what will playfair do for you?  The playfair program is quite
simple.  It takes one of the iTMS Protected AAC Audio Files, decodes
it using a key obtained from your iPod or Microsoft Windows system and
then writes the new, decoded version to disk as a regular AAC Audio
File.  It then optionally copies the metadata tags that describe the
song, including the cover art, to the new file.

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Most of the heavy lifting for this program is done by the mp4v2 and
mp4ff libraries.  These libraries can be obtained from the FAAD
project website: http://www.audiocoding.com/

The original version of this program was derived from a
Windows-only program called m4p2mp4.  More information on this
program can be found at: http://www.techfreaks.org/


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                    INFORMATION WANTS TO BE FREE.
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               (It also wants to be anthropomorphized.)
