---

pnglib 
Copyright (c) 1998-2002 Glenn Randers-Pehrson

---

jpeglib 
Portions of this software are based in part on the work of the Independent JPEG Group.

---

zlib 
(C) 1995-1998 Jean-loup Gailly and Mark Adler

---

ogglib 
Copyright (c) 2002, Xiph.org Foundation

---

audiere
Audiere: A High-Level Sound Playback System
Audiere (c) Chad Austin 2001-2003

---