The 2021 remaster emphasizes the spatial placement of sounds. Tracks like "Warning" benefit from a wider soundstage, making the cinematic storytelling feel more like a 3D experience than a flat recording.
The 2021 remaster in FLAC is often available in —a high-resolution specification that captures frequencies beyond human hearing (preserving harmonic overtones that affect how we feel the music). notorious big ready to die remaster flac 2021