Free Lossless Audio Codec is a file format for lossless audio data compression. During compression, FLAC does not lose quality from the audio stream, as lossy compression formats such as MP3, AAC, and Vorbis do. Josh Coalson is the primary author of FLAC. FLAC reduces bandwidth and storage requirements without sacrificing the integrity of the audio source. A digital audio recording encoded to FLAC can be decompressed into an identical copy of the audio data. Audio sources encoded to FLAC are typically reduced to 50 60% of their original size.