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Topic: 70MM ultra panavision

Leo Enticknap
Film God

Posts: 7474
From: Loma Linda, CA
Registered: Jul 2000

posted 05-04-2015 07:30 PM

I don't think it would be realistic for any exhibitor to expect at 24/7, near-instantaneous response to a request for support for an end-of-life audio system. In fact, they should be grateful that anyone is contemplating trying to organize any ongoing support at all. A few days plus a handling fee that reflects the cost of safeguarding the data (which isn't much, but neither is it nothing) and getting it to the end user is completely reasonable.

Given the importance of this audio to cinema history from the '90s and '00s (not least because as Brad points out, it's evidence of original release mixes), I'd still be disappointed if none of the major archives that have substantial studio collections are willing to take this on.

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Brad Miller
Administrator

Posts: 17775
From: Plano, TX (36.2 miles NW of Rockwall)
Registered: May 99

posted 05-04-2015 11:51 PM

I've said it for years, Film-Tech would gladly offer to preserve the archive and make available with studio bookings downloadable ISO images of the discs. For theaters without cd burners (assuming there is such a thing), we could burn and UPS them copies of the discs for a small fee to cover the shipping.

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Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12814
From: Annapolis, MD
Registered: Dec 1999

posted 05-05-2015 07:31 AM

I could see in the very near future a day when CD Blanks will be no more. Disc Media becoming a thing of the past and the CD being an old version of that. What is the shelf life of CD blanks? I know from an archival standpoint, "burned" CDs are the first things to give it up of just about any media.

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Brad Miller
Administrator

Posts: 17775
From: Plano, TX (36.2 miles NW of Rockwall)
Registered: May 99

posted 05-05-2015 10:03 AM

So long as the dts6 and dts6-d players have been upgraded to DVD drives, the files can be burned to DVD-Rs. The XD10 and XD20 have always had them. Also the XD10 and XD20 can load from a USB drive.

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Leo Enticknap
Film God

Posts: 7474
From: Loma Linda, CA
Registered: Jul 2000

posted 05-05-2015 11:30 AM

The archival life of "homebrew" optical discs has had quite a bit of research done (mainly based on Arrhenius testing) - Library of Congress study. The short version is between a few months and 20 years (reliably), based on the dye type, how well it was burnt, how well it was stored (storing it in a completely light tight container in as dark as possible a room appears to be the biggest single factor) and how many times it's been read.

My gut feeling is that it'll be around five years from the time at which we're no longer seeing them on the shelf at Office Depot before even specialist suppliers won't be selling them. Even VHS tapes are still being made, albeit in very small quantities and pretty expensive now - there are some data recorders from the '80s and '90s used in medical and industrial applications that still use them for example (same deal with BRK exciter bulbs used in pathology lab imaging equipment, that will also work in Eiki portable 16mm projectors - but because they're medical grade, sterilized etc., they cost $150 each).

So I suspect that any remaining 6s and 6Ds will be on their last legs before the supply of CD-Rs starts to become a problem. And because of the huge market penetration of audio CDs, it'll be a long time before the technology goes away totally.

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Steve Kraus
Film God

Posts: 4094
From: Chicago, IL, USA
Registered: May 2000

posted 05-05-2015 02:25 PM

Before shutting down could they make a set of generic TC negatives, each one longer than any conceivable 70mm reel, which labs could use to print TC? The protection against playing the wrong disks would be lost of course but hopefully anyone playing more than one 70mm print could manage to make sure the right disks are in the player. (Not sure about XD's...is there a way to select the title or maybe only one movie can be loaded at a time.) The lab could then use these negs for many releases until they wear out.

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Mark Gulbrandsen
Resident Trollmaster

Posts: 16657
From: Music City
Registered: Jun 99

posted 05-05-2015 02:49 PM

No need to make disks. The media can be loaded onto a thumb drive and sent out and ingested into an XD-10.

If DTS is really shutting all this down be sure to hold onto what ever mag dubber's you have. That will be all that is left to do six track in the future.

Mark

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Louis Bornwasser
Film God

Posts: 4441
From: prospect ky usa
Registered: Mar 2005

posted 05-05-2015 03:26 PM

Steve: I believe their very first ones were as you describe.

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Paul Gordon
Jedi Master Film Handler

Posts: 580
From: Ottawa, Ontario, Canada
Registered: Aug 2005

posted 05-07-2015 05:49 AM

FYI new Magnatech 70mm DTS readers are roughly $1500.00 US each.

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