John Curl's Blowtorch preamplifier part II - Page 3530 - diyAudio
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Old 18th February 2013, 12:09 AM   #35291
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Originally Posted by Kindhornman View Post
I'll remember not to store my cd's in a basement after your comment.
Fungus have good musical taste (Larry Carlton -Alone but never alone).
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Old 18th February 2013, 12:11 AM   #35292
bcarso is offline bcarso  United States
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Yes I've polished out a number of CD problems. Not much to be done when they delaminate though, although the horrible issues were with laser disks. There was a case where the industry was in denial for a long time.

I'll never forget the first CD defect that turned Emma Kirkby's voice into a repeating robot in the middle of Handel's Messiah. One expected the tractor beam from the saucer to whisk one up shortly. Perfect sound forever until it's anything but... and maybe never was to begin with.
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Old 18th February 2013, 12:29 AM   #35293
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fas42,
Believe me I tried to polish that data disk myself with plastic polish and the scratches were just to deep to take out that way. The company I sent the disk to actually uses a machine to polish the surface of the polycarbonate until it is again smooth. It looked like a new disk when they were done. Yes I know to polish from the center out, not around the disk as that actually can make tracks that the laser attempts to follow. It was much cheaper than the cost of a new XP disk!
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Old 18th February 2013, 12:51 AM   #35294
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Old 18th February 2013, 02:38 AM   #35295
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I'm a great believer in car polish here: Frank
The polishes that the amateur telescope makers use to finish mirrors also work very well. I have a few ounces of cerium oxide that works wonders.
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Old 18th February 2013, 02:43 AM   #35296
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AT LAST! A tweak that we can all believe in: Polishing our CD's when they get scratched or stained.
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Old 18th February 2013, 02:53 AM   #35297
qusp is offline qusp  Australia
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not really a tweak, much like turning the windscreen wipers on when its raining
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Old 18th February 2013, 04:06 AM   #35298
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Quibble.
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Old 18th February 2013, 04:42 AM   #35299
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I just needed something like that years ago when my kids decided that you could play a cd on my turntable. Just cut some grooves and you got it right! Didn't do the stylus much good though. I finally got around to replacing it after all these years of just sitting there. At least they won't do that again!
HA!

Though I wonder how polycarbonate would do as a record. Think it'd be a bit too brittle. SY probably has a good answer to that one.

se
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Old 18th February 2013, 04:42 AM   #35300
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not really a tweak, much like turning the windscreen wipers on when its raining
No, definitely not a tweak. It's a fix.

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