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FLAC stands for Free Lossless Audio Codec, an audio format similar to MP3, but lossless, meaning that audio is compressed in FLAC without any loss in quality. This is similar to how Zip works, except with FLAC you will get much better compression because it is designed specifically for audio, and you can play back compressed FLAC files in your favorite player (or your car or home stereo, see supported devices) just like you would an MP3 file.

FLAC stands out as the fastest and most widely supported lossless audio codec, and the only one that at once is non-proprietary, is unencumbered by patents, has an open-source reference implementation, has a well documented format and API, and has several other independent implementations.

See About FLAC for more, or Using FLAC for how to play FLAC files, rip CDs to FLAC, etc.

FLAC 1.3.0 released  :Changelog here
last updated 2013-May-04
news
17-Sep-2007 :
FLAC 1.2.1 released

16-Aug-2007 :
Sound Forge 9.0b supports FLAC

03-Aug-2007 :
Czech Radio releases free FLAC recordings

23-Jul-2007 :
FLAC 1.2.0 released

13-Feb-2007 :
FLAC 1.1.4 released

27-Nov-2006 :
FLAC 1.1.3 released

25-Oct-2006 :
Winamp 5.31 ships with FLAC support

20-Dec-2005 :
Volvo's Digital Jukebox plays FLAC

21-Sep-2005 :
Live2496 now records directly to FLAC

10-Aug-2005 :
Olive's new Symphony component supports FLAC

11-May-2005 :
YME supports FLAC and Vorbis

10-May-2005 :
PONTIS' MS330 supports FLAC and Vorbis

02-May-2005 :
Sonos now supports FLAC and Vorbis

23-Apr-2005 :
iAUDIO X5 portable supports FLAC and Vorbis

09-Mar-2005 :
Squeezebox2 supports FLAC on the box

05-Feb-2005 :
Version 1.1.2 released

(all news)