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dexxas's picture
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CD question
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Anyone taken the blank card from top of your Blank CD spindle yet?

 

and placed it over a CD you like  and pressed play

 

Can you hear the diffrence ?

 

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RE: CD question

No but when I was much, much younger and far more gullible I once bought one of those green pens and drew round the outside rim of a few of my CDs. Guess what difference it made? Fur Call. Same as this would. (Unless your idea of a difference is the card getting stuck in the mechanism and causing the disc to skip. Strictly speaking that would be a difference.)

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RE: CD question

dexxas wrote:

Anyone taken the blank card from top of your Blank CD spindle yet?

and placed it over a CD you like  and pressed play

Can you hear the diffrence ?

Have you got a photo because I have no idea what you mean?

 

"We are currently awaiting the loading of our complement of small lemon-soaked paper napkins for your comfort, refreshment and hygiene during the journey."

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RE: CD question

Have you never bought a spindle of blank CDs Chebby? The packing-machine often drops a disposable paper label on the top of the first CD before the lid goes on and they shrink-wrap it:.

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RE: CD question

 

 

i tried to be clever and looked for the ebay link where i saw these felt matts to place over Cd's To show  the gentleman what the treads about 

but I can not find it again for love or money. To be honest. I am puzzled to say the least to what they call them.

 

thanks for posting the pic.

 

Loved the bit about the marker pen

 

I heard another last week . You know the dummy plastic gromit you take out the toss link socket on the rear of the players. Well this add was saying you should leave it in when not in use to improve the sound of the player. They were actualy selling a dummy phono plug to go into the digital output  using the same spill. 

 

Again finding it be a problem . To show you all what I saw.  i checked the date  to to see if it was 1st of April 

 

another 

 

http://www.ebay.co.uk/itm/SONIC-CIRCLE-IMPROVES-THE-SOUND-OF-YOUR-CDS-HI-FI-CD-PLAYER-L-K-/121273641488?pt=UK_AudioTVElectronics_HomeAudioHiFi_CDPlayerSeparates&hash=item1c3c78ea10

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RE: CD question

MajorFubar wrote:

Have you never bought a spindle of blank CDs Chebby? 

Thanks for explaining.

I have only ever bought recordable CDs in packs of  10 with full-sized jewel cases (not the slimline cases and not in drums).

I haven't bought any in years and the ones I did buy are still mostly unused.

 

"We are currently awaiting the loading of our complement of small lemon-soaked paper napkins for your comfort, refreshment and hygiene during the journey."

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RE: CD question RE: CD question

dexxas wrote:

 

 

i tried to be clever and looked for the ebay link where i saw these felt matts to place over Cd's To show  the gentleman what the treads about 

but I can not find it again for love or money. To be honest. I am puzzled to say the least to what they call them.

 

thanks for posting the pic.

 

Loved the bit about the marker pen

 

I heard another last week . You know the dummy plastic gromit you take out the toss link socket on the rear of the players. Well this add was saying you should leave it in when not in use to improve the sound of the player. They were actualy selling a dummy phono plug to go into the digital output  using the same spill. 

 

Again finding it be a problem . To show you all what I saw.  i checked the date  to to see if it was 1st of April 

 

another 

 

http://www.ebay.co.uk/itm/SONIC-CIRCLE-IMPROVES-THE-SOUND-OF-YOUR-CDS-HI-FI-CD-PLAYER-L-K-/121273641488?pt=UK_AudioTVElectronics_HomeAudioHiFi_CDPlayerSeparates&hash=item1c3c78ea10

Did you mean this one Smile

http://www.ringmat.com/products/statmat.htm

 Electrocompaniet EMC 1 UP , Monarchy Audio DIP, Electrocompaniet ECD 1 dac , EC4.8 preamp , 2x AW180 monoblock power amps , PMC PB1i speakers . Thousands of Cd's .

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RE: CD question

 

 

20 years ago, specific labels, mats, and pens were released with the aim of controlling scattered light. Some worked, many were ineffective. 

 

I found on a Pioneer PD-77 changing the stable platter mat for a different type made a noticable difference. But that was a high-end machine and it's mech was designed with the extra mass (and inertia) that adding a platter and mat brings. Plus the system it ran through was revealing enough to portray the improvement that lowering the reliance on error correction all these little mods were supposed to bring.

 

Long way of saying don't do it, the blank card won't do anything for light scatter, it will add inertia, and will slip on the disc. Potentially damaging the disc long term, and making read errors even worse!

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RE: CD question

Thanks  lectro

Thats it .   Wish i had something else constuctive to add, I cant compete with some of you guys.  You do a grand job thanks 

 

 

I did find this  I think I will get  Two Smile

 

http://www.ebay.co.uk/itm/Marigo-Labs-Evolution-Ultima-Signature-CD-Mat-/231150081030?pt=UK_AudioTVElectronics_HomeAudioHiFi_CDPlayerSeparates&hash=item35d19e5406

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RE: CD question

surely all that is going to happen is you put more stress on the motor by adding extra weight to the cd, and possibly slowing it down. 

are we going to see gold coloured discs in the future? or any other colour that sounds "better".

speaking of which, i wonder why they chose silver for compact discs anyway?

 

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RE: CD question

It's actually aluminium. They chose it because it's cheap, it's very resistant to tarnishing long-term, and it's relective enough for the job required. What they didn't count on is that some of the glues and dyes they used on early labels cause it to corrode, giving rise to what's called disc-rot, leaving the whole CD unplayable (or more likely just bits of it)

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RE: CD question

bigfish786 wrote:

are we going to see gold coloured discs in the future? or any other colour that sounds "better".

There have already been many golds CDs, it's usually reserved for special editions and 'audiophile CDs' from the likes of Mobile Fidelity Sound Labs which promise to use only the potentially-superior first-gen masters.

bigfish786 wrote:

speaking of which, i wonder why they chose silver for compact discs anyway?

It's actually aluminium. They chose it because it's cheap, it's resistant to tarnishing long-term (well mostly), and it's reflective enough for the job required. What they didn't count on is that some of the glues and dyes they used on early labels cause it to corrode, giving rise to what's called disc-rot, leaving the whole CD unplayable (or more often just bits of it).

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RE: CD question

I bought a Cd last week and the playing surface is gloss black ! It plays perfectly well and sounds no better or worse that a silver disc IMO  Smile

 Electrocompaniet EMC 1 UP , Monarchy Audio DIP, Electrocompaniet ECD 1 dac , EC4.8 preamp , 2x AW180 monoblock power amps , PMC PB1i speakers . Thousands of Cd's .

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RE: CD question

MajorFubar wrote:

It's actually aluminium. They chose it because it's cheap, it's very resistant to tarnishing long-term, and it's relective enough for the job required. What they didn't count on is that some of the glues and dyes they used on early labels cause it to corrode, giving rise to what's called disc-rot, leaving the whole CD unplayable (or more likely just bits of it)

 

Ahh, disc-rot would explain why some of my old CDs, not played for donkey's, wouldn't rip.  If I told you what bands you'd probably say "good job too".:)

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RE: CD question

Came across this thread a bit late, but if anyone is interested I do know that in the mid 80’s ‘disc damping pads’ or ‘stabilising mats’ (as they were then known) were inadvertently proved to have no effect.

 

Back in 1986 Stan Curtis (Cambridge Audio designer) made something called the ‘Quality Assurance Module’.  This module was wired up to a modified version of his famous CD1 player, and was a digital readout of ‘corrected errors’, ‘uncorrected errors’ and ‘signal dropouts’.  So you could actually witness what was going on between laser head and disc.  Indeed, back then CD production wasn’t the exact science it is today.  If you held a pre 1986 disc up against a bright light you would usually see ‘pin holes’ through the aluminium layer.  One Epic disc I have in my collection has a massive 2mm hole in the layer, and there are other areas of the disc that have more holes than aluminium!   It’s amazing that the thing played on a first generation player?

 

Although the QAM was primarily built to test the quality of the CD1 transport, it soon became apparent that it could also highlight the quality of disc manufacture.  So when one of these units was given to the reviewers, they naturally couldn’t resist trying it both ‘with’ and ‘without’ disc damping pads/mats (and reflective foils), and the QAM counted the same amount of errors either way.  It left at least one reviewer totally embarrassed about having recommended such devices.  What was more interesting was what happened when the disc was cleaned with a soft cloth, as the error rate went up significantly.  So there was no denying that the QAM worked!

 

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This of course happened

Mr Morph wrote:
So when one of these units was given to the reviewers, they naturally couldn’t resist trying it both ‘with’ and ‘without’ disc damping pads/mats (and reflective foils), and the QAM counted the same amount of errors either way. It left at least one reviewer totally embarrassed about having recommended such devices.

This of course happened because in the mid-80s reviewers were still trying to assess and grade digital playback systems and accessories using vague immeasurable criteria (like the infamous PRAT) which had no relevance in the new digital world the reviewers suddenly found themselves in. And when I see the utter-nonsense spewed by such as Ringmat.com (linked-to above by Electro), whose CD mat will apparently give you "greater resolution and separation, a wider, deeper soundstage, enhanced power and dynamics and an overall cleaner, crisper sound", I worry that in 30 years we've not got very far. Maybe their product does reduce read errors (I doubt it), but even if it does, it's absolutely fundamentally impossible for it to improve the sound in the way they describe, which are more like the claims of a turntable-accessory manufacturer.

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