Winamp is a proprietary media player written by Nullsoft, now a subsidiary of Time Warner. It is skinnable, multi-format freeware / shareware.

You can download it from the URL below.

 

Audacity is a free, easy-to-use audio editor and recorder for Windows, Mac OS X, GNU/Linux, and other operating systems. You can use Audacity to:

iTunes is a digital media player application, introduced by Apple on January 9, 2001 at the Macworld Expo in San Francisco,[2] for playing and organizing digital music and video files. The program is also an interface to manage the contents on Apple's popular iPod digital media players as well as the iPhone. Additionally, iTunes can connect to the iTunes Store (provided an internet connection is present) in order to purchase and download digital music, music videos, television shows, iPod games, audiobooks, various podcasts and in the USA feature length films, and ringtones.