I understand that FLAC compresses and then decompresses the audio into an “exact” duplicate of the original. And I have read about it.
FLAC - Wikipedia
FLAC (; Free Lossless Audio Codec) is an audio coding format for lossless compression of digital audio, and is also the…
Lossless compression - Wikipedia
Lossless compression is used in cases where it is important that the original and the decompressed data be identical, or…
But it is hard for my non-scientist mind to understand how they can make file size 50% or more smaller and not lose any data. I guess it is a little bit of scientific magic. : )