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In Reply to: RE: So what's the deal with CD demagnetizers? posted by Tony Lauck on November 15, 2015 at 08:38:02
I guess it all comes down to your definition of perfect. Perfect sound forever. ;-)
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Perfect is measured by the bits that are on the disk. This is verified by the Accurate database.
The piece of plastic spun months ago when it was ripped. It is no longer anywhere close to the equipment in my listening room. I haven't tried demagnetizing the hard drive that holds all of the bits from my ripped CDs. Somehow, I suspect this would be a poor idea... :-)
Tony Lauck
"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
... to a CD and then compared the calculation results before and after demagnetizing the disc.
On the surface the answers given appeared to be the same but the result from demagnetized CD seemed to have much more presence about it. I was particularly impressed with the naturalness of the decimal points.
You should understand that a data CD-ROM has a third layer of error correcting code applied to it. This is because the error correction provided by Sony in the CD format was good enough for "perfect sound for ever" but completely inadequate by standards of computer data integrity, even back in the 1980's. From the computer standpoint, the Red Book CD is nothing but junk media. Anyone mastering audio CD's is well aware of the problems with this format, especially in the CD-R format which is like thermal paper printing and tends to decay with time, depending on temperature.
Without the extra error correction, your natural decimal points might have moved. Depending on whether they represented debits or credits, you might have considered the error beneficial.
Tony Lauck
"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
You see everything!
;-)
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