LaserDisc's support for multiple audio tracks allowed for vast supplemental materials to be included on-disc and made it the first available format for "Special Edition" releases; the 1984 Criterion Collection edition of Citizen Kane is generally credited as being the first "Special Edition" release to home video,[citation needed] and for setting the standard by which future SE discs were measured. The disc provided <answer>interviews, commentary tracks, documentaries, still photographs</answer>, and other features for historians and collectors.
What bonus features were available on the first home video "Special Edition"?
interviews, commentary tracks, documentaries, still photographs