Best conversion of old CD's to lossless?

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iTiberius

iTiberius

Member
Joined 2005
Bill Coltrane said:
No it doesn't. Every bit goes through the same process, no jitter is introduced in this manner. Edit: See the last pdf you supplied.
Google hash functions and checksum algorithms.



Metal in paint doesn't mean it reacts to magnetic fields. Only paint with pure ferrous metal in it can be magnatized. And that is ultra rare.
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Right, but the process can take one or more ALU clocks. ;)
Iron oxide Fe2O3 or Fe3O4, is a crystal and has a magnetic charge on it naturally.

Regards,
Tibi
 
iTiberius

iTiberius

Member
Joined 2005
Bill Coltrane said:
I just tried applying a huge varying magnetic field (compared to the possible field strength possible in paint. I used a tape demagnatizer) to an open CD player. No audible change, no skipping, nothing.


Why don't you come up with proof of your claims. My signature shows how to do that.
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Nothing wrong with that. Some people still hear a difference, as I do. This doesn't mean we should ignore them.
I'm offering an explanation, which, in my opinion, I believe is the right one.

Regards,
Tibi
 
B

Bill Coltrane

Member
Joined 2018
tvicol said:
Nothing wrong with that. Some people still hear a difference, as I do. This doesn't mean we should ignore them.
I'm offering an explanation, which, in my opinion, I believe is the right one.

Regards,
Tibi
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If there is a real audible change, it's really easy to provide the actual proof.
I'm waiting with great anticipation to have my worldview changed on this subject.

Edit: You gave an explanation of what you heard. There are more explanations of what you heard possible, yours doesn't need to be valid.
I just applied a magnetic field orders of magnitude greater than is possible with paint to a CD players playback maganism, nothing... I suggest everyone to try it, it's easy, takes just a few minutes.
Without actual proof, I just can't believe you. But with proof, I'll shout it as hard as I can to the world.
 
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scott wurcer

scott wurcer

R.I.P
Joined 2004
DF96 said:
Not even wrong!
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I know you are fond of the stuff the patent office allows. :D

Due to the fact that laser beams at the pick-up unit of the reproduction apparatus are electromagnetic waves, they are naturally deflected, refracted, distorted or the like by the influence of the magnetism of the magnetic information recording disc. As a result, tone quality and image quality deteriorate when the information recording disc is reproduced. It is therefore desirable to sometimes conduct demagnetization processing after the disc has been reproduced several times.
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T

tapestryofsound

Member
Joined 2017
Hi,

I too am in the process of ripping my CD collection to FLAC using EAC, and an oldish netbook running Windows XP with an external USB DVD/CD burner. So far, I am about 200 CDs into my collection with a 99.9% success rate, and only occasional track errors, which to my satisfaction are completely inaudible.

However, there is one CD that has proved impossible to rip in EAC's secure mode, with each every track coming up with read/sync/timing errors. Basically, EAC locks up, and I have had to switch to EAC's burst mode to get a rip. Lots, of timing errors in the result, but it plays back without any audible loss of quality. Quite incredible when I think about it.

The disc itself is clean with no scratches, and I do wonder if it is a poor pressing. I never thought this was ever possible with CD's, or if it is due to the age of the mid 90's disc. The DVD/CD reader/burner is on the AccurateRip data base, and its offset has been calibrated, so no apparent problems there.

My question is: would a more expensive, perhaps more purposefully engineered CD reader make that much of a difference?

ToS
 
O

ofswitched

Banned
Joined 2018
DF96 said:
Data transfer is either perfect or abandoned. You may be able to tell it how hard to try (e.g. how often to retry) before giving up.


The chance of false data being accepted as valid data is vanishingly small, unless the reader is astonishingly poorly designed.


Not even wrong!


To sell something you just have to convince ignorant people that there is a problem which it solves. The problem does not have to be real.


It can be seen that your critical faculties and knowledge of science is not very sensitive.


Now you are being funny.


My understanding is that most, if not all, the error correction takes place as a natural part of the decoding so raw data with errors flows in one end and processed data without errors emerges at the other end. In any case, the data ends up in a FIFO buffer and is then clocked out to the DAC. There is not a little man inside who has to run off to another department to get some data checked and corrected when an error occurs, thus holding up the process until he returns.

Is this thread now an attempt at breaking the record for number of myths per page?
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Is it a waste of time to argue about a fact that already exists in this world? Is there any real meaning? You have written a lot, but I am too lazy to look at it because I am telling the truth. You won't accept it, then you can continue! Anyway, it is not my loss.
 
I

Indiglo

Member
Joined 2018
@tapestryofsound

I had one CD that always would skip around on a particular track on the CD player in my car but played perfectly on any player that I had. Checked the CD in the DVD drive of my pc using EAC I get a 99.8% track accuracy for that particular song track compared to 100% for all the others.

I'm putting it down to quality issues with the pressing.

It maybe the case that your external drive has troubles with that particular CD, would another drive be better, possibly, can you borrow another one?

Interesting my samsung dvd drive is actually a toshiba.
 
diyiggy

diyiggy

Disabled Account
Joined 2019
ripping old stripped CDs

Hi,

Is it safe to rip old stripped/bad looking surface CDs but which have no jumps when playbacking? Some samples skipped at riping giving somewhat a different sounding experience (harder sound ??) or not ?

Is it totally bit perfect with such low striped discs or are there some samples skiped & swaped with datas extrapolated from correction errors algo giving a harder/different percieved sound for instance so a brandnew purchased CD would be better to rip ?

What is a good enough accuracy percentage point with EAC please for a quality playback?
 
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