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.
AudioShell adds an ID3 tag editor and files rename tools into Windows system music files pop-up menu. AudioShell property shell handler adds detailed music tags information into Windows Explorer columns and Preview pane, thumbnail handler adds thumbnails with album art into Explorer. Full Unicode and 64 bit support.
X Lossless Decoder (XLD) is a tool for Mac OS X that is able to decode / convert / play various ‘lossless’ audio files. The supported audio files can be split into some tracks with cue sheet when decoding. It works on Mac OS X 10.4 and later. XLD is Universal Binary, so it runs natively on both Intel Macs and PPC Macs.
WMP Tag Plus is a plug-in that integrates seamlessly into Windows Media Player to provide library and tagging support for additional music formats. These formats include FLAC, Ogg Vorbis, WavPack, Monkey’s Audio (.ape), Musepack and MPEG-4.