It serves as a perfect digital backup of the original physical media. Summary

You can convert FLAC files to any other format (like AAC or MP3) in the future without losing any additional quality.

Experimental, blues-influenced heavy metal featuring Rocka Rolla and the seminal Sad Wings of Destiny .

For a collector or audiophile, a FLAC discography is superior to standard MP3s for several reasons:

Halford's return to the band, resulting in Angel of Retribution and the concept album Nostradamus . Technical Value of the FLAC Format