: Collectors often sell new or pre-owned dual-audio box sets, including those for the original Z series and its movies.

: Available for digital purchase by season, typically featuring the English dub.

: In the US, Hulu carries portions of the series, primarily featuring the English dub. Physical Media for Permanent Access

For the highest quality and guaranteed dual-audio availability, official Blu-ray and DVD sets are the standard.

: You can find the Dragon Ball Z: The Complete Series Blu-ray Collection , which includes all 291 episodes with English and Japanese audio.