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Author Topic: DVD's May Self Destruct Bill Gabel Film God Posts: 3873 From: Technicolor / Postworks NY, USA Registered: Jan 2002 posted 02-03-2003 02:27 PM                     DVD's may self destruct, says Australian Report. Australian investigators have discovered an increasing number of deteriorating DVD products. This is from todays IMDB, it was reported in Saturdays Sydney Morning Herald. http://us.imdb.com/StudioBrief/#3  |  IP: Logged Brad Miller Administrator Posts: 17775 From: Plano, TX (36.2 miles NW of Rockwall) Registered: May 99 posted 02-03-2003 02:35 PM                     I knew it would happen sooner or later. However I do question the whole "3 rentals" thing. Ya want it to keep for the rest of your life? Go film!  |  IP: Logged Claude S. Ayakawa Film God Posts: 2738 From: Waipahu, Hawaii, USA Registered: Aug 2002 posted 02-03-2003 02:44 PM                        My copy of "THE AMERICAN PRESIDENT" developed a 'Rot' and had to be replaced. Many others have also had the same problem with this title as well as others. I have found DVD's to be much better than Lasrdiscs regarding the degradation of the encoded image due to oxidation or other causes. I once had to replace a lot of laserdiscs that were pressed by 3M and that was no fun. -Claude  |  IP: Logged David Stambaugh Film God Posts: 4021 From: Eugene, Oregon Registered: Jan 2002 posted 02-03-2003 02:52 PM                        If the discs have a delamination problem causing "DVD rot", I don't see how the rental issue has anything to do with anything. If a disc is going to delaminate, it will do it just sitting on a shelf, whether it's the store's shelf or in someone's home.  |  IP: Logged John Pytlak Film God Posts: 9987 From: Rochester, NY 14650-1922 Registered: Jan 2000 posted 02-03-2003 02:55 PM                        Simple rules for long term storage are COOL, DRY, and VENTED. http://www.kodak.com/US/en/motion/support/technical/storage1.shtml http://www.kodak.com/US/en/motion/support/technical/molecular.shtml http://www.rit.edu/~661www1/sub_pages/8page20.htm Check out SMPTE Recommended Practice RP131: SMPTE Recommended Practice RP131  |  IP: Logged William Leland III Master Film Handler Posts: 336 From: Charleston, SC, Registered: Aug 2002 posted 02-03-2003 04:38 PM                        I guess we can assume this would effect Playstation 2 games. They use a DVD format.  |  IP: Logged Paul G. Thompson The Weenie Man Posts: 4718 From: Mount Vernon WA USA Registered: Nov 2000 posted 02-03-2003 06:01 PM                     I already lost two of them to DVD rot. I have lost one CD-R to rot, also. I'll almost bet DVD and CD - CDR rot was engineered into the product.  |  IP: Logged Doug Willming Film Handler Posts: 45 From: San Antonio, TX, USA Registered: Jan 2001 posted 02-03-2003 06:21 PM                        I'd heard other stories about DVD rot. So far, it doesn't seem to be as predominate as Laser rot, but it's still a young format so, who knows. I've probably got 150-200 laserdiscs (many of which I paid $40 or more for pre-DVD, and not nearly as many cool extras, grrrr...). Most of them still look fine. As a matter of fact, I've got some that I think look better than DVD, but it makes me mad when I stick one in after seeing it a year or two ago and finding it unwatchable with rot.  |  IP: Logged Darryl Spicer Film God Posts: 3250 From: Lexington, KY, USA Registered: Dec 2000 posted 02-03-2003 07:41 PM                    in the early days of CD's they had to change the ink formula because it was eating into the layer of information below it causing the CD's to be unplayable.  |  IP: Logged Scott Norwood Film God Posts: 8146 From: Boston, MA. USA (1774.21 miles northeast of Dallas) Registered: Jun 99 posted 02-03-2003 07:49 PM                        This is interesting, but not really surprising. It's sad that many of the newer formats don't seem to have the shelf life of the formats that they are intended to replace. I have some 40+ -year-old LPs that play perfectly and I have some 16mm Kodachrome home movies shot in the 1940s by my grandfather which look great (no vinegar!). I don't think that it is too much to ask of the designers and producers of newer audio and video formats that they be playable in 50 years. Part of the problem is the failure mode of each format: a scratched CD is usually completely unplayable, while a scratched record or film print just sounds and/or looks bad.  |  IP: Logged Steve Kraus Film God Posts: 4094 From: Chicago, IL, USA Registered: May 2000 posted 02-03-2003 08:44 PM                    I think when I get a few thousand digital stills saved up I'll make a deal with one of my clients who own the only film recorder in town and have them do a "film out" onto color negative (which fades but slowly and predictably) or really get anal and have them make B&W seps which should last almost forever.  |  IP: Logged Paul G. Thompson The Weenie Man Posts: 4718 From: Mount Vernon WA USA Registered: Nov 2000 posted 02-03-2003 09:05 PM                     I still think it is a bunch of crap. Have you ever heard of a hard drive disk rotting? Ever hear of a mini-disk rotting? One of the oldest DVD's I have is in perfect condition. Some of the newer ones are falling apart. A quick check of my older Lazer disks seem to be in perfect shape, yet. So why are the "late model" DVD's rotting when some of the older ones are still in perfect shape? I have an old CDROM by Microsoft that is from 1994. It is in perfect shape! I have the old CorelDraw 3.0 that is still in perfect shape! I have an old version of Strong International's Motion Picture Equipment Instruction Manuals and Parts lists of September 1998. Outside of a few minor scratches, it is in perfect shape. I have an old CDROM musical sound track of "The Lost Boys" (the movie) and it is still in perrfect shape. To make a long story short, the technology is in place and has been used. That's why I think that early failures in the newer CDROM's and DVD's have been engineered in the disks. Either that, or some manufactures just have piss poor manufacturing and quality control techniques. Hmmmmm........  |  IP: Logged Adam Martin I'm not even gonna point out the irony. Posts: 3686 From: Dallas, TX Registered: Nov 2000 posted 02-03-2003 10:05 PM                     Crappy manufacturing. Paul hit the nail on the head. There are several manufacturers of DVD-R discs out there that even though you pay a ridiculously low amount of money for, you have to throw half of them away when your burner won't write to them. (Glass mastered discs being a completely different technology, but the analogy is the same.)  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 02-03-2003 10:06 PM                     I've yet to loose any sort of silver disk. I have so many formats too, and alot of my CD's date back to when CD's first came out!! With the increase in DVD production it doesn't surprise me that there will be impending troubles. Most of you that ayve had problems seem to live in more humid areas though. Out here in Utah not much happens to anything as far as rot,rust, mold, or deterioration. Mark  |  IP: Logged Randy Stankey Film God Posts: 6539 From: Erie, Pennsylvania Registered: Jun 99 posted 02-03-2003 10:10 PM                     Well, there IS a strain of bacteria (or mold) that thrives on the organic material that the ink CD-Rs, CD-RWs and DVD-Rs are made out of. It gets in through the edge of the disk between the layers and eats it way through the "sandwich until there's nothing left. With "pressed" disks, that shouldn't be a problem because there shouldn't be any organic material. The reflective layer SHOULD be made out of vapor-deposited aluminum. The only thing I can think of is that they aren't pressing the layers together long, hard and hot enough to cause them to bond.  |  IP: Logged

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