History:

    Version 2.3 (Released 11/14/2009)
        - Fix bug about 8000Hz WAV file save to MP3.

    Version 2.2 (Released 6/18/2009)
        - Fix bug about can not initialize Lame encoder.

    Version 2.1 (Released 7/12/2007)
        - Change method of saving files.
        - Change domain name and software name.

    Version 2.0 (Released 6/27/2007)
        - Support WMA files.
        - Fix some bugs.

    Version 1.0 (Released 12/25/2006)
        - Initial release.