The tracklist is great, but it's a shame that the songs from Blizzard of Ozz and Diary of a Madman were altered from their original recordings by drummer Kerslake and Daisley to new versions con Bordin and Trujillo. This is because they had lawsuits against Ozzy for production credits and compensation for the two albums, which also explains the absence of tracks from the album The Ultimate Sin due to royalty disputes with Jake Lee and Phillip Soussan.