Cog is released under the GPL. See COPYING for details. The libraries folder contains various decoding and tagging libraries, which i have created Xcode projects for, and possibly modified to make compile on OS X. The various libraries are under each of their own licenses. All Cog code is copyrighted by me, and is licensed under the GPL. If you would like the photoshop sources for the various icons and graphics, please send me an email, and I will be happy to get them to you. Share and enjoy. --Vincent Spader (vspader@users.sf.net)