[5] Tracks featured here from the first two albums are the re-recorded versions from recent reissues (see Blizzard of Ozz and Diary of a Madman) as well as the remixed Bark at the Moon tracks.

[7] This compilation was re-released in 2009 as a Limited Edition 3.0 package with an additional disc of bonus songs that were not on the original release.

The album tracks from Blizzard of Ozz and Diary of a Madman are from the 2002 remasters, for which they were partially re-recorded.

The original drum and bass tracks were replaced with recordings by Osbourne's then-current bassist Robert Trujillo and drummer Mike Bordin, as a management response to legal action by original bassist Bob Daisley and drummer Lee Kerslake for unpaid royalty fees.

It does not feature any material from 1986's The Ultimate Sin; however, the limited edition bonus disc does include two tracks from said album.