All versions of Ringtonesia for Windows utilize the following open source software as seperate programs:
FFmpeg
Sox
MediaInfo
AviSynth

All versions of Ringtonesia for Windows utilize the following open source software as dynamically linked libraries:
XULRunner
GeckoFX

All versions of Ringtonesia for Mac OS X utilize the following open source software as seperate programs:
FFmpeg
Sox
MediaInfo (Standalone)

The source code and licenses for the software above can be found below.


FFmpeg
Website: http://ffmpeg.org/
License: GPL
License Text: http://www.gnu.org/licenses/gpl-3.0.html
Version: r20783
Source Code: http://files.redkawa.com/sources/ffmpeg/ffmpeg-r20783.7z
Build Instructions: http://files.redkawa.com/sources/ffmpeg/ffmpeg-r20783-howto.7z
Location (Win): Tools/FFmpeg/ffmpeg.exe
Usage (Win): ffmpeg.exe is a pre-compiled binary. Ringtonesia uses exec to invoke ffmpeg.exe. ffmpeg.exe is a seperate program.
Location (Mac): Contents/Resources/Java/Tools/FFmpeg/ffmpeg
Usage (Mac): ffmpeg is a pre-compiled binary. Ringtonesia uses exec to invoke ffmpeg. ffmpeg is a seperate program.


Sox
Website: http://sox.sourceforge.net/
License: GPL
License: http://www.gnu.org/licenses/gpl-2.0.html
Version: 14.2.0
Source Code: http://files.redkawa.com/sources/sox/sox-14.2.0.tar.gz
Location (Win): Tools/Sox/sox.exe
Usage (Win): sox.exe is a pre-compiled binary. Ringtonesia uses exec to invoke sox.exe. sox.exe is a seperate program.
Location (Mac): Contents/Resources/Java/Tools/Sox/sox
Usage (Mac): sox is a pre-compiled binary. Ringtonesia uses exec to invoke sox. sox is a seperate program.


MediaInfo
Website: http://mediainfo.sourceforge.net/
License: LGPL
License Text: http://www.gnu.org/licenses/lgpl-3.0.html
Version: 0.7.22.0
Source Code: http://files.redkawa.com/sources/mediainfo/libmediainfo_0.7.22_AllInclusive.7z
Location (Win): Tools/VideoInfo/MediaInfo.dll
Usage (Win): VideoInfo.exe is a standalone executable that dynamically links to MediaInfo.dll. VideoInfo.exe is a pre-compiled binary. Ringtonesia uses exec to invoke VideoInfo.exe. VideoInfo.exe is a seperate program.


MediaInfo (Standalone)
Website: http://mediainfo.sourceforge.net/
License: GPL
License Text: http://www.gnu.org/licenses/gpl-3.0.html
Version: 0.7.21.0
Source Code: http://files.redkawa.com/sources/mediainfo/mediainfo_0.7.21_AllInclusive.7z
Location (Mac): Contents/Resources/Java/Tools/MediaInfo/mediainfo
Usage (Mac): mediainfo is a pre-compiled binary. Ringtonesia uses exec to invoke mediainfo. mediainfo is a seperate program.


AviSynth
Website: http://avisynth.org/
License: GPL
License Text: http://www.gnu.org/licenses/gpl-2.0.html
Version: 2.58
Source Code: http://files.redkawa.com/sources/avisynth/Avisynth_258_src.zip
Location: AviSynth/Avisynth.exe
Usage: AviSynth.exe is a pre-compiled installer. AviSynth is installed as a seperate program during the installation of Ringtonesia. AviSynth is utilized when an AviSynth Script (*.avs) is used as an input to ffmpeg.


XULRunner
Website: https://developer.mozilla.org/En/XULRunner
License: MPL
License Text: http://www.mozilla.org/MPL/MPL-1.1.html
Version: 1.9.1.3
Source Code: http://files.redkawa.com/sources/xulrunner/xulrunner-1.9.1.3-source.tar.bz2
Location: XULRunner/
Usage: GeckoFX is dynamically linked to XULRunner.


GeckoFX
Website: http://geckofx.org/
License: MPL
License Text: http://www.mozilla.org/MPL/MPL-1.1.html
Version: 1.9.1.0
Source Code: http://files.redkawa.com/sources/geckofx/Skybound.GeckoFX.src.v1.9.1.0.zip
Location: Skybound.Gecko.dll
Usage: Ringtonesia is dynamically linked to GeckoFX.