This tool is used to convert Audio Interchange File Format (aiff) to Free Lossless Audio Codec (flac).

Audio Interchange File Format is an audio file format standard used for storing sound data for personal computers and other electronic audio devices.

Free Lossless Audio Codec is an audio coding format for lossless compression of digital audio. Digital audio compressed by FLAC's algorithm can typically be reduced to 50–60% of its original size and decompressed to an identical copy of the original audio data.