Likes Likes:  0
Page 1 of 3 123 LastLast
Results 1 to 15 of 35

Thread: CD Tarnishing.

  1. #1
    Andante
    Guest

    Default CD Tarnishing.

    Have any of you had the CD problem of [tarnishing or browning] I understand it is applicable to AVS and other makes, it is a breakdown of the silvering layer [oxidation] that is used to digitally write on, this results in the usual skipping and stuttering that you get with a scratch. But of course in this case the CD is not scratched.
    At the moment I have a AVS CD that I am endeavouring to copy just to see if the fault will be transferred or not, the damaged track has now been labouredly copying for over 2 hrs, will let you know the results, but any comments would be welcome,


  2. #2
    Andante
    Guest

    Default

    I think now would be a good time to check you Cds, this problem affects DG, ASV, Hyperion, Decca, and maybe a lot more. My attempt to copy was unsuccessful, the PC stalled after 2 tracks and spat out the sick CD,
    Get onto it before its too late

  3. #3
    Senior Member
    Join Date
    Oct 2006
    Posts
    313
    Post Thanks / Like

    Default

    Good advice above. I didn't think you would solve it. After 2 hours trying to copy a CD, it clearly is too long. I had similar trouble with a CD once. They seem to have a certain "life" and that's it. It was this that made me copy everything. I bought an external drive to put them onto. When I create new CDs they only go onto Sony or Phillips or TDK. They're so cheap it's not worth skimping.

  4. #4
    Senior Member Frasier's Avatar
    Join Date
    Mar 2007
    Location
    UK
    Posts
    415
    Post Thanks / Like

    Default

    This sounds like the famous "disc rot" that plagued (in particular) Nimbus pressings for a while and was about incompatibility with the ink in the printed leaflet affecting the lacquer (label side) that directly covers the silvering. It's possible that some computers will copy such a disc specially if the read speed is set slow. I don't know how it affects other "makes" (pressing plants).

  5. #5
    Andante
    Guest

    Default

    It seems that it is faulty sealing of CD, in the late 80 to early 90s, I have found 15 with tarnishing, some are still playable so have been copied,
    3 had the last track or two badly effected, I have had one replaced by the retailer, it was well over 15 yrs old, on the CD notes in the case most had the message
    “ This CD will give a lifetime of perfect enjoyment” or words to that effect
    The link below explains it better.



    http://www.gramophone.co.uk/mainforu...56&type=chrono

  6. #6
    Senior Member Frasier's Avatar
    Join Date
    Mar 2007
    Location
    UK
    Posts
    415
    Post Thanks / Like

    Default

    Quote Originally Posted by Andante View Post
    3 had the last track or two badly effected, I have had one replaced by the retailer, it was well over 15 yrs old, on the CD notes in the case most had the message
    “ This CD will give a lifetime of perfect enjoyment” or words to that effect
    Yes, CDs start playing in the centre and rot seems to start at the edge so the last tracks. Nimbus offered replacements if they were available - sadly, not all were. I have a BBC CD that "suddenly" became unplayable though it doesn't seem to be tarnished. I wrote to the BBC but they withdrew it some time ago....makes one suspicious....

    Lifetime enjoyment? Yeah?

  7. #7
    Senior Member Lisztfreak's Avatar
    Join Date
    Jan 2007
    Location
    Samobor, Croatia
    Posts
    705
    Post Thanks / Like

    Default

    I naively thought that CD's are practicaly immortal!
    ''Oh, the String Quartet - oh, the Divine Scratching!''

  8. #8
    Senior Member ChamberNut's Avatar
    Join Date
    Jan 2007
    Location
    Winnipeg, Canada
    Posts
    549
    Post Thanks / Like

    Default

    Personally, I've had more problems with DVD players, more than anything else. After awhile and a fair amount of usage, the CD or DVD that's playing freezes up. I don't if anyone else has experienced this issue with some of their DVD players?

    Also, CD's seem to be much more sensitive nowadays to any little minor dust/dirt and scratches. Back when I first started buying CD's in the early 1990's, I'd have discs with many scratches, fingerprints and such and they seemed to not be affected.

  9. #9
    Senior Member Frasier's Avatar
    Join Date
    Mar 2007
    Location
    UK
    Posts
    415
    Post Thanks / Like

    Default

    Quote Originally Posted by ChamberNut View Post
    Personally, I've had more problems with DVD players, more than anything else. After awhile and a fair amount of usage, the CD or DVD that's playing freezes up. I don't if anyone else has experienced this issue with some of their DVD players?
    Just got my first one. Although stored correctly upright and at a temperature that doesn't vary wildly, the layers seem to be separating on one of my discs...in certain light little patches of prismatic rings can be seen. The disc won't even get to the menu so presumably the TOC is messed up.

    Also, CD's seem to be much more sensitive nowadays to any little minor dust/dirt and scratches. Back when I first started buying CD's in the early 1990's, I'd have discs with many scratches, fingerprints and such and they seemed to not be affected.
    I can't answer that as few others play my CDs so they don't get scratched or fingerprinted. It's possible that in the never ending drive for profit, companies have discovered cheaper ways of silvering that don't work as well. I'm also quite surprised at the number of smaller production runs that are done in duplicators rather than pressed. Ok, to the red-book standards but these CDs are more vulnerable to heat and light.

    I have never had trouble with Japanese-mastered/pressed CDs, some quite old now as well.

    Another point: I've been enquiring about the life expectancy of a CD-R under "normal" storage conditions. (Kodak claim their photodiscs (.pcd files) will last 100 years.) But I'm getting wildly different answers. Some cheaper discs can't be expected to last more than a few years so I'm doing important stuff on the Fuji discs that claim to be a little less vulnerable.
    Last edited by Frasier; Mar-12-2007 at 17:26.

  10. #10
    Junior Member Inominate's Avatar
    Join Date
    Oct 2007
    Posts
    42
    Post Thanks / Like

    Default

    I see this topic discussed on many forums. As yet, I have not witnessed this although, with almost 4000 CDs and over 1500 DVDs, I'm sure I will. I am not about to start looking through my collection for possible damage though!

    Does anyone know if it's a particular trait to specific labels?

  11. #11
    Banned
    Join Date
    Feb 2007
    Location
    Córdoba. Argentina
    Posts
    946
    Post Thanks / Like

    Default

    Quote Originally Posted by Inominate View Post
    I see this topic discussed on many forums. As yet, I have not witnessed this although, with almost 4000 CDs and over 1500 DVDs, I'm sure I will. I am not about to start looking through my collection for possible damage though!
    The whole task is actually easier than what it seems. You should look for that very old Nutcracker suites cd* you purchased many years ago. The one that started the collection.


    *Digression: Thoughtful statistics reveal orchestral suites from Bizet's Carmen have proven adequate compatibility with the notion of starting a large scale collection.

  12. #12
    Junior Member Inominate's Avatar
    Join Date
    Oct 2007
    Posts
    42
    Post Thanks / Like

    Default

    I'm afraid it really isn't that simple. If it were just the oldest CDs that would be understandable and relatively easy to check. It's just not the case besides, I have checked all my first batch and they're fine. The consensus seems to be that it's only a few, specific, labels and not ALL CDs. Apparently some labels used cheaper manufacturing processes. On other forums some of these labels were named. I checked some of these and mine were fine. Pity I can't rememer the labels isn't it?!!! I might do a search within the other forum and come back.

  13. #13
    Andante
    Guest

    Default

    Quote Originally Posted by Inominate View Post

    Does anyone know if it's a particular trait to specific labels?
    Have a look at my post #2 above for some labels, it seems to be on CDs of early 90s
    I would certainly check your favorite ones and then copy, in total I found about a doz + out of 1000Cds, best of luck.

  14. #14
    Senior Member Badinerie's Avatar
    Join Date
    May 2008
    Location
    Washington England
    Posts
    1,766
    Post Thanks / Like

    Default

    I was just playing my earliest cd's last week. ( From 1985 ) No problems with any. I remmember the great pinhole scandal!. The silvering on many early cd's were imperfectly coated. Airbubbles got into the process creating tiny areas of no silvering which mean that the laser wasnt reflected back and the music signal was lost. Some early players rendered these pinholes as loud pops! There have probebly been as many problems with cd as there ever was with Vinyl. Its an imperfect world we live in!

  15. #15
    Junior Member
    Join Date
    Jun 2009
    Location
    West Midlands.
    Posts
    25
    Post Thanks / Like

    Default

    I once had two cd's which refused to play. They had both previously played on my machines. One was a Decca recording of Ravel,and the other was a DG of music by Mendelssohn. Since they were about five years old I just chucked them away.
    My oldest cd is one which I bought from Woolies or WH Smith,and is on the Pickwick label,a cheapo. This is now 22 years old and plays perfectly. I have a couple of tarnished cd's which have been so for many years but still play perfectly,and yet some CDR discs,recorded by myself,produce a ticking sound when played,and they are a few years old. With vynyl at least You could still play a record even if it was a little marked,and many a scratched 78 disc plays without trouble.
    Mongoose.

Page 1 of 3 123 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •