FLAC reduces the size of digital audio approximately 60 percent and is a widely supported format across the most popular platforms. It is open source and developed by the Xiph.Org Foundation. A FLAC Fingerprint file, which contains the filename and checksum information for a FLAC file, may be generated along with the FLAC file. This file is typically named 'ffp.txt' and can be created using the following command: 'metaflac -show-md5sum flacfilenames ffp.txt'.
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