Here is some information regarding about the new Region 1 dvd of 螢火蟲之墓 (Grave of Fireflies).
Grave of Fireflies Collector's Edition
Format:

DVD (NTSC, Region 1)

Publisher:

Central Park Media

Date:

8 October 2002

Runtime:

89 minutes

Price:

$29.99

Notes:

2 Discs. Anamorphic Widescreen, Storyboards, Trailers, English & Japanese audio with English Subtitles.

Bonus Disc Features:

Interview: Director Isao Takahata
Interview: Film Critic Roger Ebert
Author Biography: Akiyuki Nosaka
Director Biography: Isao Takahata
Creative Team Interviews
The Fire Bombings in Japan: Commentary by Professor Theodore F. Cook & Professor Haruko Taya Cook
Video Restoration Documentary
Original Japanese Theatrical Trailer
Art Gallery
US Trailer

Information Origin: www.nausicaa.net
and Amazon.com