Grrr!The Rolling Stones celebrate their 50th anniversary with GRRR!, a compilation available in several different formats. The simplest set is a triple disc compilation containing 50 tracks; there is also a Deluxe Edition containing the same three CDs, along with a hardcover book and five postcards. These 50 tracks also form the basis of a bound vinyl box set, but the Super Deluxe Edition box set is an 80 track, four disc set with a different track