• European Digipack and Brazilian releases come with "Natural High" videoclip as bonus.
• Bonus tracks for Japan: The Fire Burns Forever (Live), Raise the Hammer (Live).
• Limited edition bonus 3" DVD: Natural High, The Fire Burns Forever, Making of 'Natural High'.

Personnel

• Joacim Cans
  Joacim Cans
  Joacim Cans is the lead singer of HammerFall, a Swedish power metal band. He is the only member aside from founder and guitarist Oscar Dronjak to appear on all of the band's albums....
  
  - Lead & backing vocals
• Oscar Dronjak
  Oscar Dronjak
  Oscar Fredrick Dronjak is the rhythm and lead guitarist and founder of the Heavy Metal band HammerFall. Prior to the success of HammerFall, he also played and released albums with the death metal acts Ceremonial Oath and Crystal Age....
  
  - Guitars & backing vocals
• Stefan Elmgren
  Stefan Elmgren
  Stefan Elmgren was the guitarist of the Swedish power metal band HammerFall from 1997 to 2008.- History :Before becoming a member of HammerFall, he was the guitarist in the band Highlander. Elmgren has also worked with his solo project Full Strike and released one album called "We Will Rise" which...
  
  - Guitars & backing vocals
• Magnus Rosén
  Magnus Rosén
  Klas Magnus Rosén is a Swedish musician, born 1963 in Gothenburg, and is best known for being the bassist of the Swedish band HammerFall during the years 1997-2007....
  
  - Bass
• Anders Johansson
  Anders Johansson
  Anders Johansson is a Swedish musician. He is the son of Jan Johansson, famous jazz pianist and brother of keyboardist Jens Johansson.-Biography:...
  
  - Drums

Music videos

The song Natural High was made into a music video depicting Hector the Knight battling vampires in a decrepit castle; he managed to kill all of the vampires with his hammer, but one of them escapes, leaving Hector by himself. The video itself is a montage alternating between the band and the action, which is shot in live-action and complemented with CGI.