Thread: A technical Query

Posts: 10

Post by Iradj1343 May 8, 2011 (1 of 10)
Can anyone advise how to fix a fault on a SACD surface? I have recently bought a rare title from a second-hand shop only to realise some tracks sound like there is a scratch or dust spec on the surface. Nothing is visible though, and the CD layer plays without a problem. I wonder whether standard CD repair kits can fix this or any other solutions are available?

Post by pgmdir May 8, 2011 (2 of 10)
If the CD layer plays, I'd guess you have a defect rather than a scratch. I have two SACDs which skip in MC--- I Can't replace them, so I listen to the 2 channel mix on the SACD layer.

If you try to fix a scratch that isn't there, you could end up doing more harm than good.

Individual machines may have more trouble with errors than others.

Post by lennyw May 9, 2011 (3 of 10)
In my former record-retail days we sold these plastic film disc covers, which it was claimed were able to protect discs from scratches, but also get rid of the problems of scratches if put on the CD. Not sure what they were called, but they might help...

Post by rammiepie May 9, 2011 (4 of 10)
lennyw said:

In my former record-retail days we sold these plastic film disc covers, which it was claimed were able to protect discs from scratches, but also get rid of the problems of scratches if put on the CD. Not sure what they were called, but they might help...

They were called CD shields and were manufactured by Compact Dynamics Co. which I believe is now out of business. The only problem, if they bubbled you were out of luck as trying to remove them would cause irreparable damage to the disc.

Sounds like the problem is a defective SACD layer and the only other solution would be to try it on another SACD player.

Post by emaidel May 10, 2011 (5 of 10)
I have used a product called, "L'Art du Son," which is a CD/SACD/DVD "cleaner/conditioner." I have found that it greatly improves the sound of any disc I use it on, and while I'm sure there will be plenty of people who think that's flat out imossible, and I'm nuts to think so, it did do something that may be pertinent here in this thread: it made a CD I've owned since 1984 of Tchaikovsky's 1st and 3rd Piano Concertos play perfectly from beginning to end, which the disc NEVER did, regardless of which player I used in all the years since.

The finale of the 3rd Piano Concerto was full of ticks and skips for decades, but an application of L'Art du Son made the disc play flawlessly for the very first time. It may be worth seeking out for your troublesome SACD, if not for the sonic benefits it offers any disc to which it's applied.

Post by Disbeliever May 10, 2011 (6 of 10)
emaidel said:

I have used a product called, "L'Art du Son," which is a CD/SACD/DVD "cleaner/conditioner." I have found that it greatly improves the sound of any disc I use it on, and while I'm sure there will be plenty of people who think that's flat out imossible, and I'm nuts to think so, it did do something that may be pertinent here in this thread: it made a CD I've owned since 1984 of Tchaikovsky's 1st and 3rd Piano Concertos play perfectly from beginning to end, which the disc NEVER did, regardless of which player I used in all the years since.

The finale of the 3rd Piano Concerto was full of ticks and skips for decades, but an application of L'Art du Son made the disc play flawlessly for the very first time. It may be worth seeking out for your troublesome SACD, if not for the sonic benefits it offers any disc to which it's applied.

(£43.95 on Ebay) I wonder if its even better than the one Rammiepie uses, I think it was called Vivid ? sounds like another .......

Post by AmonRa May 10, 2011 (7 of 10)
emaidel said:

I have used a product called, "L'Art du Son," which is a CD/SACD/DVD "cleaner/conditioner." I have found that it greatly improves the sound of any disc I use it on, and while I'm sure there will be plenty of people who think that's flat out imossible, and I'm nuts to think so, it did do something that may be pertinent here in this thread: it made a CD I've owned since 1984 of Tchaikovsky's 1st and 3rd Piano Concertos play perfectly from beginning to end, which the disc NEVER did, regardless of which player I used in all the years since.

The finale of the 3rd Piano Concerto was full of ticks and skips for decades, but an application of L'Art du Son made the disc play flawlessly for the very first time. It may be worth seeking out for your troublesome SACD, if not for the sonic benefits it offers any disc to which it's applied.

It is certainly possible that it works. It is simple physics and optics after all; if there are optical imperfections on the disk surface (scratches, even invisible ones, etc.) a product like this can smooth out things and make the disk playable, make the signal strong and healty enough for the error correction to work its magic.

It is totally another matter to claim that a disk which plays faultlessly (clean undamaged disks do...) could be made better by similar products (pace, Rammipie). If the reproduction (data reading) is perfect, it can not be bettered. In 99.99% of the disks this is the case. With cheap DVD computer drives (poor cousins of SACD drives) there is one read failure in a WEEK in continuous use on the average with clean disks... If a $20 DVD drive can do this, why not a $20000 SACD transport?

Post by lennyw May 10, 2011 (8 of 10)
rammiepie said:

They were called CD shields and were manufactured by Compact Dynamics Co. which I believe is now out of business. The only problem, if they bubbled you were out of luck as trying to remove them would cause irreparable damage to the disc.

I think I still have an unopened sample pack somewhere. Never had the guts to use it fearing precisely the problem you mention, but kept them in case such an issue as the OP's ever arose.

Post by The Seventh Taylor May 10, 2011 (9 of 10)
Iradj1343 said:

I have recently bought a rare title from a second-hand shop only to realise some tracks sound like there is a scratch or dust spec on the surface. Nothing is visible though, and the CD layer plays without a problem.

Which SACD is it? Perhaps others here have the same experience with it?

Post by Iradj1343 May 14, 2011 (10 of 10)
The Seventh Taylor said:

Which SACD is it? Perhaps others here have the same experience with it?

It is a 2003 Norah Jones album called 'Come Away with Me'. The first 9 tracks play without a problem but tracks 10 to 14 are so bad my Pioneer universal player stops playing them after a few seconds.

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