Freezing CDs?

tones said:
OT, anyone else notice that this diagram is wrong? The label is NOT on top of the acrylic layer (which is the read surface).
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'Ranson' Yes..the disc is read from beneath the 1.2mm (Protective Plastic Substrate) polycarbonate Plastic, the Label 'Is' printed onto the Protective Acrylic layer. No... Tones, the Cd is not read through the Printed Label ! :)

'sq225917' Quote: I have never read any Hifi forum thread that contained as much utter bollocks.

am sure 'Everything' you do 'sq225917' is of the utmost importance.. It's a matter of perspective :MILD:
 
zanash said:
the method .....

ok a quick trip to Tesco and the purchase of two random £3 cd's in this case lynyrd skynyard's the collection [544 431 2]
both were placed in freezer bags in there cases [the bag ,the sort with the sliding seal]. One was placed in the central portion of our upright freezer in the tray where freezer blocks are stored, at -10c. The second in its bag in the same room and as close to the freezer as possible with out being on it. They were both left over night and will spend 24 hrs in there alotted position. That brings us up to the current time.....

What I propose to do is to remove the frozen cd and place it still in its sealed bag in the refrigerator at +4c and to leave it for another 24hrs.....the unfrozen disc will accompany the frozen one but not enter the fridge.

I will then first play the unfrozen disc and the repeat the same track on the frozen disc .....if I can't hear any difference I will pick a second track and repeat. If all results are negative ie no change then I should have listened to all the tracks [and all positions on the disc]

I'm open to reasonable suggestions if anyone can think of a better way forward.
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I think that method is flawed, so I would propose the following additional testing should your results show a preference for the frozen disc:

Once your testing has been concluded, send the discs down to me and I will play them to you under blind conditions. A number of systems can be assembled for the testing and I am happy for one other person (must be another believing this stuff) to also take the test. I will purchase a third copy of the disc for control purposes. Results to be published here.
 
wadia-miester said:
Go get em Tone's :-)
How the devil are you my elder name sake?
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I'm good, thanks, ol' spud, very busy, so not much time for forums (and, I confess, much interest any more).

I hope things go well at Coherent Systems. I'd love to drop in and see it all, but, alas, all my visits to the UK take me either to Belfast or to Kent, neither of which is just down the road from you. Perhaps one day...not that I can afford you, of course!
 
RHolt to Zanesh.. Looks like an interesting proposal, though the question i would ask/propose, is that of the listeners of the blind test..how would it be judged that their *few* ears/neurons have similar sensitivity to find sound frequencies, i have an exact copy of my CD that a friend has very kindly sent to me, the Frozen Cd will be ready for test by the weekend, the CD will be tested for difference from what i hear, from what my nearest-dearest will hear and from what friends of hifi and non hifi hear, i reckon on/after about twelve? opinions i will have a result of worth, of course..the result from my own hearing either negative or positive is my matter, for it to be of worth to others as absolute.. needs a greater agreement, though the deciding factor in this instance may need to be unanimous.

As Zanesh.. i am entering the test with an open mind :)
 
spica said:
RHolt to Zanesh.. Looks like an interesting proposal, though the question i would ask/propose, is that of the listeners of the blind test..how would it be judged that their *few* ears/neurons have similar sensitivity to find sound frequencies, i have an exact copy of my CD that a friend has very kindly sent to me, the Frozen Cd will be ready for test by the weekend, the CD will be tested for difference from what i hear, from what my nearest-dearest will hear and from what friends of hifi and non hifi hear, i reckon on/after about twelve? opinions i will have a result of worth, of course..the result from my own hearing either negative or positive is my matter, for it to be of worth to others as absolute.. needs a greater agreement, though the deciding factor in this instance may need to be unanimous.

As Zanesh.. i am entering the test with an open mind :)
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No need to complicate the issue. Simply hearing a difference will do just fine, with a reasonable degree of repeatability.
 
Anyone tried playing a frozen record? You'd need to borrow that walk-in freezer for your collection though Rob!
 
RobHolt said:
No need to complicate the issue. Simply hearing a difference will do just fine, with a reasonable degree of repeatability.
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Ok ...fine, buzzing like a bee in ear of one, two like on ice as their teeth chatter and three, three is as deaf as a post (but in denial)..with four.. all is well, but believe it.. there is/isn't a difference :confused:

Obviously worse (listener) case scenario, but as you say, 'Results To Be Published Here', well 'Malarkey' ..results of the findings *of the few* are published elsewhere, and as you well know, what good has it done :D
 
Was i a little pedantic or was the other a little obtuse...i dunno, guess i'm not used to knowing the best of ears. Lemmies were never that good (surprise) though Mick Jones's (nice guy) were good, there were those that kept good sound (in home) systems back then, Phil Lynott at Richmond (rip) , Richard Coles (Zep) as expected and Phil Coleen (def-lep) so not all is lost, can't be there just to look pretty can it ? Am sure the ears you find 'RobH' will be worthy. (as they all are ?) :D
 
Checked in to see if I had been savaged reccomending the Nespa Pro but seems nobody noticed it. Phew.

Yes, treating CD's does work without a doubt. I have also found that burning on to black CD's works very well too. The CD lathe also brings about results as owners can testify. The Nespa Pro is the biggest CD improver I have come across however. On the other hand the pens never did anything for me - and auric illuminator did nothing whatsoever. However - a cetain brand of scratch cleaner really does work.

As for freezing - it is also well known as a trick to repair CD's and DVD's as is polishing with toothpaste. I have dozens of students over the years who thought their CD's and DVd's were ruined who have thanked me for the toothpaste and freezing trick.

Open minds and a willingness to experiment.
 
If you take a brand new CD and breathe heavily on the playing surface you'll see in the mist a heavy pattern. This pattern is very likely a chemical contamination put there during manufacture. If you now use an 80% solution of Isopropyl Alcohol (Propan-2-ol) in distilled water and spray the CD buffing it up with a new duster, you may notice a distinct mirror like finish that was not there before. Now play the CD and enjoy. The difference...??? That's up to you to decide.
Do not think you can use furniture polish. It contains chemicals that will coat the CD making it no better than it was initially. These chemicals include Glycerol put there to make one's hands gorgeous and soft.
Just a thought...!!!​
 
tones said:
I'm good, thanks, ol' spud, very busy, so not much time for forums (and, I confess, much interest any more).

I hope things go well at Coherent Systems. I'd love to drop in and see it all, but, alas, all my visits to the UK take me either to Belfast or to Kent, neither of which is just down the road from you. Perhaps one day...not that I can afford you, of course!
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Hi Tones,

Things are progressing in a good manner thank you sir.
On the whole I have little time from them also, work is pretty steady !
Listening costs nothing Tones, neither does a good refreshments.
How often are you in Kent/N-I these days?

Tones the getting on a bit now
 
spica said:
Suspend your disbelief for a moment.This really works! seal a CD in a freezer bag to avoid condensation, place it in a deep freeze overnight, then bring it back to room temperature slowly-either in the fridge or in a cool part of the house.
We tried this using two identical CD's of the Race by Yellow, one was frozen the other left untreated,.The frozen version produced a noticeably deeper bass, which was cleaner, better seperated and completely lacking in tendency to boom which was exhibited by the unfrozen version. The music sounded a lot more three- dimensional with a deeper soundstage and the individual instruments were more precisely positioned between loudspeakers.
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Anyone tried banging their head on the floor repeatedly just before listening? Or doing some handstands?

It could make a difference, guys.
 
Tenson said:
Anyone tried playing a frozen record? You'd need to borrow that walk-in freezer for your collection though Rob!
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Oh yes, forgot about that!

One of my clients imports and freezes exotic seafood for distribution in the UK. Guess I could rent part of his freezer room (constant -20c) and move my entire system in there.
 
The Devil said:
Anyone tried banging their head on the floor repeatedly just before listening? Or doing some handstands?

It could make a difference, guys.
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Welcome back to the asylum James. Did you have a good holiday?
 
The Devil said:
Anyone tried banging their head on the floor repeatedly just before listening? Or doing some handstands?

It could make a difference, guys.
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Perhaps you should try it before your next post !

As you are pathologically incapable of ever offering constructive criticism perhaps you should seek some medical intervention, maybe a frontal lobotomy would improve your ability to interact with others of differing opinions, whilst also reducing the inanity of your baseless, egotistical and unwarranted statements.

Sir, you are an arse :p
 


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