The Number of the Beast: Experience the terrifying clarity of the title track's intro.
: Finally includes prominent bass lines that were lacking in original CD pressings.
A "Free Lossless Audio Codec" that compresses audio without losing any data, making it the preferred format for high-fidelity listeners.
Powerslave: The complex layering of "Rime of the Ancient Mariner" demands the separation that only Hi-Res can provide.