Russell Hammond, writing on The Digital Bits website has gathered some invaluable information on the tech specs for the forthcoming Blu-ray extended LOTR box set.
First, for those unfamiliar with digital recording technology, let me quote from Film Art: An Introduction, a textbook my husband David Bordwell and I wrote together:
Digital recording capacities are measured in pixels (short for “picture elements”), the tiny dots that make up the electronic image on TVs and monitors. There are now four commonly used levels of resolution in professional digital recording: 720p, 1080p, 2K, and 4K. Since the information carried on each image increases both vertically and horizontally, each stop up multiples the resolution: 4K carries not twice, but four times the amount of information as 2K.
Here’s what Hammond has learned about the resolution for the LOTR Blu-ray release:
We’ve confirmed that 2K was the resolution of the final post-production/editorial master for the film. So unless and until someone goes in and rescans all the film elements at higher resolution, then rebuilds the edit and re-renders all the visual effects at the higher resolution, 2K is the highest resolution element available to master a Blu-ray from.
What this means is that the filmmakers would have to go back and do much of the huge post-production process again to get to 4K images. (I suspect that the sound would not have to be re-done.) This is obviously not feasible, either financially or logistically. (Much of the team who would have to do the work are currently working on the first Tintin movie and presumably now The Hobbit as well.) Since the Blu-ray captures LOTR as it was made and shown in theaters, I suspect not too many fans will object. (Besides, if you were watching a digitally projected copy of LOTR in a theater, if you sat further back than the sixth row, your eye wouldn’t be able to detect the difference between 2K and 4K.)
Perhaps of more concern are the supplements, which were shot on video cameras to begin with. Hammond explains why all the supplements will be in the DVD rather than the Blu-ray format. (In the following, HD stands for high definition and SD for standard definition.)
Surely they were shot in HD? And the answer is no, they weren’t. We’ve confirmed that all of the material was shot in 16X9 SD and the finished documentaries were in that resolution and aspect ratio. What’s more, the Costa Botes documentaries were 4X2 letterboxed SD. You have to remember, from post-production to finished DVDs, this material was produced in the 1989-2003 timeframe. The HD transition had ony just begun, and studios weren’t in the habit of paying for HD behind-the-scenes material yet.
Hammond says that it wasn’t until about 2005 that the studios saw HD televisions coming down the pike and decided to pay extra for better-looking video for the supplements. So what you will get if you buy the Blu-ray extended set will be what those documentaries originally looked like, and I for one have no complaints about that.
Finally, Hammond says that “The set will include a collectible map of Middle Earth [sic], and the booklets for each film will include a chapter listing and guide to all the extras.”
For more details, check out Hammond’s article here.
[Many thanks to Lee Tsiantis of Turner Classic Movies for alerting me to this fascinating entry!]