[SCE CONFIDENTIAL DOCUMENT]
PlayStation(R)3 at3tool version 3.1.0.0
                    Copyright (C) 2010 Sony Computer Entertainment Inc.
                                                    All Rights Reserved

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PlayStation(R)3 at3tool (PS3at3tool) is an encoding/decoding tool 
for "ATRAC3plus" data.
It is a console program that runs on Windows and encodes Riff-Wave format, 
16-bit Linear PCM (LPCM) data into "ATRAC3plus" data that can be used by 
PlayStation(R)3 applications. Loops can also be set in one-sample units.
PS3at3tool is also able to decode "ATRAC3plus" data into LPCM data. 
The tool can be used to evaluate the quality of encoded sound data, 
and to distinguish between issues with the playback program and those 
with the sound data.

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Contents of This Package
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PS3at3tool
|---Readme_at3tool_*.txt
|---documents
|     +---at3tool-Users_Guide_*.pdf
+---tool
      +---PS3at3tool.exe   : Program file

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Operation Environment
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- OS Microsoft Windows XP SP2 or later

- Microsoft Visual C++ 2005 Service Pack 1 Redistributable Package ATL Security
  Update program (vcredist_x86.exe) must be installed
  (the update program is included in the latest SDK package)

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Change in version 3.1.0.0(Updated on 2010/10/01)
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[PS3at3tool]
- msvcr71.dll has been deleted since it is not necessary when executing 
  PS3at3tool.exe of version 3.1.0.0.

  Note that when executing PS3at3tool.exe of version 3.1.0.0, the following 
  PS3at3tool.exe component is required.

  - Microsoft Visual C++ 2005 Service Pack 1 Redistributable Package 
    ATL Security Update program (vcredist_x86.exe) must be installed
    (the update program is included in the latest SDK package)

[Documents Changes]
- The following changes have been made in chapter "1 Overview" in the 
  "PlayStation(R)3 at3tool User's Guide" document.

  - "Files" section
    - Deleted msvcr71.dll from the table of files necessary for using 
      PS3at3tool.
  - "Required Environment" section
    - Added a column for necessary components to the table of PS3at3tool 
      required environment. 

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Change in version 3.1.0.0
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[PS3at3tool]
- It failed to encode a specific multi channel sound source. This problem
  has been fixed.

[Documents Change]
- From version 2.1.0.0, no change has been made in the documents.
  The same documents as version 2.1.0.0 are contained in the package.

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Permission and Restrictions on Use
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The permission and restrictions on using this package conform to 
the contract concluded between your company and our company (Sony 
Computer Entertainment Inc).  

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Note on Trademarks
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"PLAYSTATION" and "PlayStation" are either registered trademarks or
trademarks of Sony Computer Entertainment Inc.

"ATRAC" is a trademark of Sony Corporation.

All other product and company names mentioned herein, with or without 
the registered trademark symbol (R), trademark symbol (TM) or 
service mark symbol (SM), are generally trademarks and/or registered 
trademarks of their respective owners.
