Referencing DVD commentary Harvard Format?

kyles

Member
What's the best way of referencing quotes from dvd commentary?

I'm doing an analysis of film music and need to include time markers for scenes i'm refering too. I know how to add the dvd of the film to my reference list but how would I add a quote from the commentary whilst writing? For example

John Smith states that "quoted example" (dvd commentary, 00:03:31)

Something like that?
 
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