Many unauthorized websites use the tag "exclusive download" to bait users into clicking ads or downloading malware. There is no secret "director's cut" MP3 of this song available for free that is superior to the official studio master.
Radio stations receive "promo" CDs that are pressed before the final commercial master. These often have a different dynamic range. A rip of that promo CD converted to 320kbps MP3 is the holy grail for collectors. These promos sometimes feature the "Instrumental" or "Acapella" on the B-side—making them truly exclusive. Many unauthorized websites use the tag "exclusive download"
Searching for terms like "better download exclusive" on unverified MP3 blogs or torrent sites carries specific risks: Many unauthorized websites use the tag "exclusive download"