Winamp — It really whips the llama’s ass!
The classic alternative to Window Media Player. Winamp is a cross platform, extensible, free and skinnable media player with a large community and a long past. Development has stopped, but may start again, meanwhile, the development community has largely moved to Foobar2000.
(Update) October 2018
A leaked version of Winamp 5.8 recently spread over the Internet. Consequently, we have decided to make this new version available to you, revised by us.
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Wikipedia
Older versions
A collection legacy resources for Winamp, including the best skins, plugins and visualizations and make them available to download freely.
The Audio File 
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