Hi Peter,

I would advise to reread the link I provided, May be new details will come forward.

In order to cause reading ripping errors from CDRs the [edit]distance[/edit] jitter of pits and lands should very very high.
So no matter how good or bad EAC does its job ripping. It would read the CDR all the same unless it is scratched too much.

I remeber ripping two CDs one was Original and other a licensed, the latter being very jittery. even my friends were able to hear it.
Guess what. they contained the same data, after ripping.

I even revived one CD for a friend. He complained that it sounded bad for him. I made a CDR copy, And he agreed that the sound did improve.
He is very suspisios about my theories however.

So the jitter in distance between pits and lands, causes laser, motor or whatever act with irregualarites. which result [edit](through PSU)[/edit] in time jitter of the 0 and 1 appearing on the circuit.

but spectrum of the distance jitter of pits and lands may not coinside with spectrum of time jitter of 1 and 0 (or the samples), but they certainly related: one is a function of another.

Andrey

I am not sure I understood about controlling section.
Are you saying that in the new version the influence on CDRs as I hear it might be gone?

I am using XP and all my observations and tests were on XP.
I just ripped couple of tracks (beginning and middle of CDR) from 2 CDRs with XX and no XX and the files are identical. Actually this was no question to me?

ripping and comparing was done in EAC

Hi Peter,

It is just occurred to me when thinking about your new upcoming version and its dynamics.
The thing that I liked so much about r version, was that the sound is engaging, alive, don't let you get bored.
in other words, yes that's right, it was very much dynamic.

So I am waiting for a surprise too.

Andrey

Ok Now, here is some results.

I recorded 3 CDRs with Nero
1 with XX r playing
2 with XX pd playing
3 with no XX playing

First I tried them with XMplay and through laptop speakers. But was a short one and I thought I could tell the difference, but decided to wait and try it in my earplugs later.

Then I listened them on windows media player just to make sure I can hear anything and I actually I could.
Then I asked a friend to shuffle the 3 CDRs and put them one at a time in my CD-ROM.

The first one he put happenned to be XXr and I recognized very quickly no mistake.
The other two was not so obvious so I asked him to changed twice to make sure. But after 2nd change I was able to tell which is which with no mistake.

So I guessed not only that they were different. but even the exact version of XX, which was playing while recorded.

And this all is with WMP and cheap laptop soundcard. hahaha

I am scared...

Andrey

Oh yes. And the context matters very much. doesn't it?

Hi Frank,

The first thing I did when noticed this was making a copy of the same tracks without XX playing.
When I tried both of them in my car. The difference was "obviouos" to me, no blind test for now, but I feel pretty confident.
I am planning to do more testing (may be even blind, if my pals won't giggle) with two different versions of XX r and pd and without XX and see what I get.
ran out of CDRs now

Andrey

A very professional one: Roxio Creator Plus!


I am thinking about removing this complete topic

It does not record jitter spectrum on CDR. It record its usual physical pits and lands jitter but in some manner affected by what's going on in the system, including spectrum created by XX.

And somehow this physical pits and lands jitter reminds me of this jitter spectrum when played plack. And I am saying that it probably recreates si,ilar "picture" on the power supply. Vodoo.

Hi Edward,

Thanks for the information about 100% bit perfect CDR copy . I have a knowledge.
And clarifying things about CDR recording process.
I never said that the music file contains jitter. Why are saying this?
And I don't confuse anything.
I may sound vodoo, but I understand what's going on. at least everything you said I agree with.
But why are saying for?

Andrey

here goes vodoo:

And why this physical jitter recorded during XX playing cannot result in the same jitter spectrum when playing back.
According to the link I provided, Jitter "microcosmically" is transferred through power supply.
So the recorded CDR when played back recreates through power supply the same jitter spectrum as when it was recorded.

Don't have enough technical knowledge here. So I am just speculating.

Unfortunately I don't have such drives to do the testing in numbers.

But isn't it about type of jitter instead of less or more jitter, for XXHighEnd?

Before you start laughing
Please refer to
http://www.digido.com/bob-katz/jitter.html
and read the passage "Can Compact Discs contain jitter?"

Now:
Couple days ago I have burned some audio CDs to listen in the car. I gave up on the CDR audio in general a while ago because it was too jittery for me.
But in the car it the least evil of all (I don't want to play from laptop in the car). So after couple of songs I realized that I feel something familiar in sound signature ( if I may).
And it jumped at me:

I was listening to XX 0.9r while burning audio CD!!!

So here it is Peter, another application for your player. You probably don't suspect how much more there is to your "know how".

So whatever is happening in XX that influences the SQ, the very same thing affects the quality (of jitter) of the audio CD being recorded.
see the link above for details.

Now you can start laughing.

Please try it yourselves, when you are done, and share your thoughts

Andrey

PS. that's the way to bring the XX player to your CD player. Just choose version of XX you like, play something with it and burn CD audio in the bacground. and viola XX inside CD player.

I've tried it on Vista.
First expression is: a lot better than XP.
But Actually I haven't got time to do extensive listening to Vista engine #3.
I am now away from Vista PC, and have a laptop with Vista but the sound interface of the laptop is bad.
So that I could not even start engine #3 on Vista. I plan to get myself something decent usb with analog volume control.
And then I will try to evaluate.
But again: even Vista + engine#1,2 sounds better than XP.

Andrey

Here I am again talking to myself.

Just to share that 0.9r with its flac and mp3 is great!
The fact that Peter paid a little listen by himself to Engine #1 an 2 did improved the SQ quality.
It IS getiing better!
It is almost like I can't expect more of the SQ anymore . But ready for surprise...

That's the kind of jitter I like!!!

Andrey

Peter,

Thanks for not forgetting about XP users .
It is really great.

Andrey