DualDisc
The album was released on the DualDisc format, which had traditional CD content on one side, and DVD content on the other side. The DVD side of this album contained a documentary entitled "Reunited", as well as the entire album in an enhanced audio format.
In Japan it was released as a 2 disc set. Compact Disc Audio and separate DVD Video. DualDisc format is supported by Japanese consumers because it is inferior and does not follow red book convention standards.
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