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Registered: March 17, 2007 | Posts: 853 |
| Posted: | | | | Disc rot is a phrase describing the tendency of CD or DVD or other optical discs to become unreadable due to physical or chemical deterioration. The causes of this effect vary from oxidation of the reflective layer, to physical scuffing and abrasion of disc surfaces or edges, including visible scratches, to other kinds of reactions with contaminants, to ultra-violet light damage and de-bonding of the adhesive used to adhere the layers of the disc together.
In CDs, the reflective layer is immediately beneath a thin protective layer of lacquer, and is also exposed at the edge of the disc. The lacquer protecting the edge of an optical disc can usually be seen without magnification. It is rarely uniformly thick; thickness variations are usually visible. The reflective layer is typically aluminum, which reacts easily with several commonly encountered chemicals such as oxygen, sulphur, and certain ions carried by condensed water. In ordinary use a surface layer of aluminum oxide is formed very quickly when an aluminum surface is exposed to the atmosphere; it serves as passivation for the bulk aluminum with regard to many but not all contaminants. CD reflective layers are so thin that this passivation is less effective. In the case of CD-R and CD-RW media, the materials used in the reflecting layer are more complex than a simple aluminum layer, but also can present problems if contaminated. The thin 10-20 thousandths of an inch layer of protective lacquer is equivalent.
DVDs have a different structure from CDs, using a plastic disc over the reflecting layer. This means that a scratch on either surface of a DVD is not as likely to reach the reflective layer and expose it to environmental contamination and perhaps to cause corrosion, perhaps progressive corrosion. Each type of optical disc thus has different susceptibility to contamination and corrosion of its reflecting layer; furthermore, the writeable and re-writable versions of each optical disc type are somewhat different as well. Finally, discs made with gold as the reflecting layer are considerably less vulnerable to corrosion problems, though no less susceptible to physical damage to that layer. Because they are less expensive, the industry has adopted aluminum reflecting layers as the standard for factory pressed optical discs.
On CDs, the rot becomes visually noticeable in two ways: 1.When the CD is held up to a strong light, light shines through several pin-prick-sized holes. 2.Discoloration of the disc, which looks like a coffee stain on the disc. See also CD bronzing.
In audio CDs, the rot leads to scrambled or skipped audio or even the inability to play a track.
Please post your discs suffering from rot here. Please enter the title, the studio, release date, the UPC and disc ID.
Thank you Widescreenforever for this great idea.
After some digging I found this address for Warner Brothers that handles HD Disc Rot. I was also unaware that Blu was getting it already. WBCustomerServices@technicolor.com
This is the 20th Century Fox page for damaged disc and exchanges. Not sure it is the answer but it is a start. http://beta.foxconnect.com/contacts/
This is the contact info for Anchor Bay. They break their contacts up by department. http://www.anchorbayentertainment.com/About.aspx?page=contact&area=contactus
Sony Pictures which includes Columbia/Tristar consumer@SPHECustomerSupport.sony.com or 1-800-860-2878
Universal Studios Contact page http://www.universalstudios.com/contact_form.php?email_id=10
Metro Goldwyn Myer offers a phone number for questions and complaints about DVD's. I am guessing this extends to Bluray was well. 888-223-2369
Wicked Pictures offers the following email address for technical support. support@wicked.com
VCX appears to own Caballero. This is there customer service info. Customer Service at 1-800-350-1931or email sales@vcx.com
Paramount pictures has the email address fir problems with DVD's. phe_customerservice@paramount.com.
A&E Home Entertainment customersupport@newvideo.com
Questar Entertainment http://questarentertainment.com/contact
Sin City customerservice@gamelink.com 800-944-3933
Shout Factory Customer Service http://www.shoutfactory.com/?q=node/987 | | | Last edited: by Lord Of The Sith |
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Registered: March 20, 2007 | Reputation: | Posts: 2,852 |
| Posted: | | | | I have several hundred CDs (my oldest were purchased in 1983) and 2,500+ DVDs (I began buying DVDs in 1998) and as far as I know none of them suffer from CD/DVD "rot". I have from time to time had new discs skip or freeze, but I don't think I've got any discs that used to play well but no longer do. Maybe I've just been lucky.
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Registered: March 13, 2007 | Reputation: | Posts: 20,111 |
| Posted: | | | | The only "rotted" disc that I've ever experienced was the Puppet Master Blu-ray from Full Moon.
Ironically, this was their "replacement" for the first defective run of discs which had an audio problem. It turns out the Blu-ray was actually a BD-R with a pressed label. After about 8 months it would not even load in any of my three Blu-ray players. Apparently all of these rotted judging from what I've read on other forums. | | | Corey |
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Registered: March 13, 2007 | Reputation: | Posts: 1,272 |
| Posted: | | | | I haven't experinced any, but to be honest I don't listen to CDs directly and usually opt for blu's when watching a movie. I'm sure a few ***shudders** have suffered that fate, but I haven't run across any. | | | HDTV: 52" Toshiba Regza 52XV545U AVR: Onkyo TR-707 Speakers: Paradigm Monitor 7 v6, CC-190 & Atom Monitors Subwoofer: Definitive Technology ProSub 800 BD/DVD: Oppo BDP-93 (Region Free) HD PVR: Motorola DXC3400 500GB w/ 1TB Expander BD/DVD/Game: 250GB PS3 Slim DVD/Game: 250GB XBox 360 Elite Special Edition (Black) Game: Wii Remote: Logitech Harmony One w/ PS3 Adapter WHS: Acer H341 Windows Home Server |
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Registered: March 13, 2007 | Reputation: | Posts: 5,494 |
| Posted: | | | | Here is my one so far: Lady In White Directors Ed. upc # 790594524029
edit- purchased march 1998 | | | In the 60's, People took Acid to make the world Weird. Now the World is weird and People take Prozac to make it Normal.
Terry | | | Last edited: by widescreenforever |
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Registered: March 18, 2007 | Posts: 150 |
| Posted: | | | | I have had some success with returning the DVD with rot to the supplier, they have always sent me an FOC replacement.
What have others found?
Ritch | | | Learning is not mandatory, but then neither is survival. |
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| Blair | Resistance is Futile! |
Registered: October 30, 2008 | Posts: 1,249 |
| Posted: | | | | So far, none of my DVDs have ever rotted.
At worst, a guy borrowed a CD from me once, kept it out of the case leaving it upside down (to "protect it" from getting scratched) and something like hairspray got on top of it making the CD unreadable. | | | If at first you don't succeed, skydiving isn't for you.
He who MUST get the last word in on a pointless, endless argument doesn't win. It makes him the bigger jerk. |
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Registered: March 17, 2007 | Posts: 853 |
| Posted: | | | | I have not gone through my collection lately. Since I started buying DVD's in about 2000 though I am figuring I probably do not have any. When I have time I will have to go through my collection. |
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Registered: June 6, 2007 | Reputation: | Posts: 950 |
| Posted: | | | | I haven't encountered any DVD rot, yet.
May I suggest that those who have such discs also post the release date of the DVD in question? I'd like to know how old is a DVD, when it dies of old age. |
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Registered: March 18, 2007 | Reputation: | Posts: 1,643 |
| Posted: | | | | Had to dig out the scans of the receipts, to remember which ones they were, that I had to send to Universal. Both of these were releases back in 1998.
Daylight: Collector's Edition (0-25192-02672-0) Primary Colors (0-25192-02832-8)
Also, my original copy of Anchor Bay Entertainment's 2001 release of SpaceCamp had developed DVD rot years ago.
SpaceCamp (0-13131-14069-9) |
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Registered: March 13, 2007 | Reputation: | Posts: 5,494 |
| Posted: | | | | Quoting ritchf: Quote: I have had some success with returning the DVD with rot to the supplier, they have always sent me an FOC replacement.
What have others found?
Ritch the idea of this post ( thanks Lord of the Sith ) is to report the title ,, you gave us no idea what it was you where successful in replacing ..... | | | In the 60's, People took Acid to make the world Weird. Now the World is weird and People take Prozac to make it Normal.
Terry | | | Last edited: by widescreenforever |
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Registered: March 10, 2009 | Posts: 2,248 |
| Posted: | | | | I believe, some of the old, snapper case releases. Are defective. |
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Registered: March 13, 2007 | Reputation: | Posts: 5,494 |
| Posted: | | | | again titles Please .... | | | In the 60's, People took Acid to make the world Weird. Now the World is weird and People take Prozac to make it Normal.
Terry |
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Registered: March 10, 2009 | Posts: 2,248 |
| Posted: | | | | The only one i'm aware of, is Lost in Space. Which i don't think, many people. Will cry to much over. I have R1 1997 release, of The Player. Still works fine. Also the 2001 release of Fingers. | | | Last edited: by ShinyDiscGuy |
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Registered: March 17, 2007 | Posts: 853 |
| Posted: | | | | Quoting Wigram: Quote: I haven't encountered any DVD rot, yet.
May I suggest that those who have such discs also post the release date of the DVD in question? I'd like to know how old is a DVD, when it dies of old age. I like this idea. Let me add this to the original post. |
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Registered: March 18, 2007 | Reputation: | Posts: 1,643 |
| Posted: | | | | Quoting Wigram: Quote: May I suggest that those who have such discs also post the release date of the DVD in question? I'd like to know how old is a DVD, when it dies of old age. Can't you simply lookup the release date of a title in DVDProfiler based on the UPC. To really know how old a DVD was when it got disc rot you'd need to know when the disc was purchased (no telling when it was actually stamped) and when the user noticed the disc rot. |
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