Some theme music is dubbed over on WWE Home Video releases, but not on these "Tagged Classics" sets. For instance, on the "WrestleMania: The Complete Anthology" box set — Demolition's entrance theme is dubbed over with generic production music. This is done to save money on paying royalties to certain artists and music production companies. These sets have all the original music included unless they were dubbed over in the original VHS/DVD releases, for example, Unforgiven 1999's main event video package featured music by Fear Factory and System of a Down, but it was dubbed over on the VHS release and thus is also dubbed over on the corresponding "Tagged Classics" release.