I have seen 3 versions of this Imax film. The first was the 90 min long videotape version. The second was the 45 minute theatre version, (as it was shown in Australia), which was basically a cut down version of the video, concentrating on the ocean floor and looking at the wreck, and this newly re-edited 67 minute DVD version. When I purchased the DVD I thought I was getting a DVD copy of the 90 min videotape version. This DVD is a completely re-edited and updated and DIFFERENT version of both the video and the theatrical versions I saw. The video of Titanica is a complete Imax film. The DVD contains numerous new interviews, all shot on video(! ), lots of old photos and film footage from the era, and while it contains Imax film footage, it doesn't end up looking and feeling and sounding like an Imax film. (And some of the Imax film included on this DVD is quiet scartchy in parts). All that said, it is a good update and does tell the story of the Titanic quiet well. Which is the main diffence between this DVD and the video. The video tells the story of the Titanic from the point of view of the Russian/Americam/Imax expedition sent in to film it, and spends a lot of time on the ocean floor, the DVD is more an overall account of the Titanic with the expedition included in the story. Its a great supplement to the video version, but not really as good. If you can afford it, try to get both, if not, go for the 90 minute videotape version, its far more intersting, the comparsion of the Russian and American attitudes to the Titanic site far more revealing and it has a lot more of that incredible Imax footage which gives you more of the feeling of actually being at the bottom of the Atlantic. I would have preferred to see the new footage either added to the original cut of the 90 minute video version or as an additional feature included on the DVD or perhaps BOTH versions could have been included on the DVD. And nothing against Mr.Leonard Nimoy but why was he allowed to say "In Search Of ..."; and why did this DVD version need to have its narration re-recorded; Cedric Smith did a fine job on the video version.