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foobar2000 is an advanced freeware audio player for the Windows platform. 
Some of the basic features include full unicode support, ReplayGain support and native support for several popular audio formats.


Features 


Powerful open component architecture allowing third-party developers to extend functionality of the player, including the ability to fully replace the user interface. 


Full Unicode support: File names, user interface, tagging, etc. 


ReplayGain support: Both playback and writing ReplayGain information to file tags. 


Gapless playback. 


Advanced tagging capabilities - through built-in Properties dialog and various optional tagging-related components. 


Built-in Media Library functionality. 

Intuitive query syntax for searching the Media Library. 

Autoplaylist support: Generate dynamically updating playlists based on queries. 


Customizable keyboard shortcuts. 


Support for transcoding all supported audio formats using the Converter component (requires external commandline encoder executables for different output formats). 


Secure CD ripping. 


Streaming support. 


Efficient handling of large playlists. 


User interface with simple configuration to create even complex layouts quickly and easily. 


Highly customizable display of track information using title formating scripts. 



Supported Audio Formats 

Native Support ("out-of-the-box"): 

MP1
MP2
MP3
MP4
Musepack
AAC
Ogg Vorbis
FLAC / Ogg FLAC
Speex
WavPack
WAV
AIFF
AU/SND
CDDA
WMA
Matroska 


Supported through optional components: 

TTA
Monkey's Audio
ALAC
MOD
SPC
Shorten
OptimFROG
AC3
DTS
PSF
NSF
XID
XA
MMS
RSTP
TAK 

In addition, foobar2000 can also play music directly from compressed ZIP and without requiring the user to extract the files prior to playing.


Changelog:


Third party components can now register custom protocols with the File Types preferences page.

Removed the restriction of just one instance of specific DSP in a DSP chain.

Fixed incorrect handling of 3-channel and 5-channel FLAC and Vorbis files.

Converter now accepts alternate names for some of command-line encoder binaries (mpcenc.exe, oggenc2.exe).

Converter and File Operations components no longer strip trailing dots from names of created files.

Improved compatibility with dodgy Windows shell replacements.

Automated submission of crash reports.