The international home release structure of "Dragon Ball Z" is complicated by the licensing and release of the companies involved in producing and distributing the work. Releases of the media occurred on both VHS and DVD with separate edited and uncut versions being released simultaneously. Both versions of the edited and uncut material are treated as different entries and would frequently make "Billboard" rankings as separate entries. Home release sales were featured prominently on the Nielsen VideoScan charts. Further complicating the release of the material was Funimation itself; which was known to release "DVDs out of sequence in order to get them out as fast as possible"; as in the case of their third season. Pioneer Entertainment distributed the Funimation/Saban edited-only dub of 53 episodes on seventeen VHS between 1997 and 1999, and seventeen DVDs throughout 1999. Two box sets separating them into the Saiyan and Namek arcs were also released on VHS in 1999, and on DVD in 2001. Funimation's own distribution of their initial onward dub, which began with episode 54, in edited or uncut VHS ran between 1999 and 2006. A DVD version was produced alongside these, although they were only produced uncut and contained the option to watch the original Japanese with subtitles.