High Quality Content by WIKIPEDIA articles! XXV is the 25th anniversary compilation album by Polish death metal band Vader. THe album is a collection of rerecorded songs from earlier Vader albums, from The Ultimate Incantation up to The Beast. THe Special Edition includes three bonus tracks and a bonus third DVD with old and rare live VHS containing footage throughout the band's career. A Compilation album is an album (music or spoken-word) featuring tracks from either a single or multiple recording artists, often culled from a variety of sources (such as studio albums, live albums, singles, demos and outtakes.) The tracks are usually collected according to a common characteristic, such as popularity, source or subject matter. WHen the tracks are all essentially by the same recording artist, a compilation album is often referred to as a retrospective album. COmpilation albums may employ traditional product bundling strategies.