Furthermore, FLAC is not just restricted to 16-bit (CD quality), and you can buy files up to 24-bit/192kHz for another potential boost in performance. While FLAC files are up to six times larger than an MP3, they are half the size of a CD and can have the same boost in audio quality. Previously the only way to get "lossless" files was via the uncompressed CD formats CDA or WAV, but neither is as space-efficient as FLAC. FLAC is lossless and more like a ZIP file - it comes out sounding the same when it is unzipped. Like MP3 before it, FLAC has been embraced by the music industry as a cost-effective way to distribute CD-or-better-quality music, and it doesn't have the auditory problems of MP3s.
Typically, cymbals, reverb, and guitars are the sounds most affected by MP3 compression and can sound distorted or "crunchy" when too much compression is applied. It is supposed to use "psychoacoustics" to delete overlapping sounds, but it isn't always successful. MP3 is a lossy format, which means parts of the music are shaved off to reduce the file size to a more compact level.
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