First of all, let me just say that this is a great idea for a topic, Tamura.
Anyway, here's what I think would be the "ultimate" DVD/Blu-ray release of the original
Godzilla, kind of à la the 5-disc release of
Blade Runner with five different versions of the movie.
DISC 1: THE ORIGINAL JAPANESE VERSION- the remastered HD transfer from Toho in 1.33:1 full screen
- Japanese mono and newly created 5.1 surround audio options (plus possible dubs)
- English subtitles (and a set of others for the Blu-ray since the format allows it)
- audio commentary with Akira Takarada (from the R2 Toho DVD; subtitled in English)
- audio commentary with Steve Ryfle, Ed Godziszewski and Keith Aiken (from the R2 BFI DVD)
- isolated music score
- original Japanese theatrical trailer (subtitled in English)
- Designing Godzilla: Making of the Godzilla Suit
-
Godzilla Story Development
- new interviews (like Akira Takarada, Kenji Sahara and Haruo Nakajima; subtitled in English)
- interview with Akira Ifukube (from the R2 Toho DVD; subtitled in English)
- The Japanese Fishermen (from the R2 BFI DVD)
- image galleries (posters, film stills, storyboards etc.)
DISC 2: THE US VERSION STARRING RAYMOND BURR- the most complete restored version of the movie available, with the Transworld logo and the end credits, in 1.33:1 full screen
- English mono and newly created 5.1 surround audio options
- English subtitles (and a set of others for the Blu-ray)
- audio commentary with Steve Ryfle and Ed Godziszewski (from the R1 CM DVD)
- the Japanese release version in 2.35:1 widescreen
- original trailers (both US and Japanese)
- interview with Raymond Burr (either for this DVD/Blu-ray or TROG/G85)
- image galleries
DISC 3: THE ITALIAN VERSIONS- both the original
Godzilla: Il re dei mostri version (
released on DVD) and
Cozzilla in 1.33:1 full screen
- Italian mono audio
- English subtitles
- audio commentary for
Cozzilla with a film historian or two
- original Italian trailers (subtitled in English)
- image galleries
DISC 4: THE GERMAN AND FRENCH VERSIONS- the original German version (
released on DVD) in 1.33:1 full screen
- German mono audio
- the French version (
released on VHS) in 1.33:1 full screen
- French mono audio
- English subtitles for both versions
- original German and French trailer(s) (subtitled in English)
- image galleries
DISCS 5 & 6: DOCUMENTARIES ETC.- The Spirit of Godzilla + all the accompanying features (from the 3-disc R2 special edition Toho DVD of GFW; subtitled in English)
- Bringing Godzilla Down to Size (from the R1 CM Rodan/WOTG DVD; English subtitles for the Japanese-spoken parts)
- Godzilla Around the World (a new documentary detailing Godzilla's popularity outside Japan; subtitled in English)
- Godzilla, King of the Monsters (BBC documentary; English subtitles for the Japanese-spoken parts)
- Animal Icons: It Came from Japan (Animal Planet documentary)
- Godzilla and Me (from the R2 French GFW DVD; subtitled in English)
- The Art of Suit Acting (from the R1 CM GRA DVD)
- Akira Ifukube, Eiji Tsuburaya, Tomoyuki Tanaka and Ishiro Honda biographies (from the R1 CM DVDs)
- The Women of Godzilla (from the R1 CM TOMG DVD)
- Godzilla Receives the MTV Lifetime Achievement Award in 1996
- footage from various G-Fests
- Blue Öyster Cult's "Godzilla" music video
-
Bambi vs. Godzilla animated short
- the Godzilla episode of AVGN
Honorable mention: I was thinking of adding the
Godzilla & Other Movie Monsters documentary too, but since it doesn't focus entirely on Godzilla, it's probably better as a stand-alone.