[rmihai0]

I would like to copy most of my CD's on blanks, and I am wondering if the the process of copying might be any information lose. Can anyone help me?

I mean, after home copying with a Plextor Pro, EXACTLY the same information will be on the copy as on the original? In the copying process might appear errors that are degrading the quality of a copy compared with that of the original?

[Rokitman]

Check this out http://www.6moons.com/industryfeatures/eac/eac.html
I haven't tried it yet but it seems interesting.

[rmihai0]

Thank you. But I am not looking to rip cd's. I want to keep the information as is. I know very well EAC. Although they are claiming that there is no loss, obviously there is a loos is the process of compressing.

My original question I straight forward and didn't assumed ANY type of compression

[Marbles]

I would like to copy most of my CD's on blanks, and I am wondering if the the process of copying might be any information lose. Can anyone help me?

I mean, after home copying with a Plextor Pro, EXACTLY the same information will be on the copy as on the original? In the copying process might appear errors that are degrading the quality of a copy compared with that of the original?

When a CD is mass produced, it is often done with a pressing process.
This process is often not as precise as it could be and no two CD's will come out the same.  Some pits will be too shallow to read, burrs can make false positives etc...

Since EAC looks to "fill in" those non read or falsly read bit's, copies made with EAC and burned at a slow rate, the slower the better, will often be better than the originals...

So if you use EAC, the SAME information might be there, or more correct information might be there.

If you burn at a high rate of speed, less info might be there.

I would not burn at faster than 4X, and if I was burning a recording for reference material, I would burn at 1X speed.

[rmihai0]

Thank you very much. Makes sense. I will try the EAC.

[CSMR]

Plextools is better (at least as accurate as EAC, but faster and easier) if you have a Plextor drive.

[Rob Babcock]

Bear in mind that some new newer drives and media are designed to work at higher speeds.  They'll actually produce a less accurate disc at 1X than at 12X.

[Marbles]

Bear in mind that some new newer drives and media are designed to work at higher speeds.  They'll actually produce a less accurate disc at 1X than at 12X.

Thanks, do you have a list of these???

[corwin99]

Better yet... is there any way of comparing a burn at 1x and a burn a 12x to see which has more "errors"? I'd like to compare some of my burns sometimes.. as i usually burn at 12-24x, but have always wondered if slower is better.

neL

[Rob Babcock]

No list off the top of my head- a good place to look is AfterDawn.com.

[miklorsmith]

There is a school of thought that CD's can be burned which are superior to the originals.  I am a believer.  Standalone laptops, external drives, and power conditioning produce incredible results.  Proper blank CD-R's are also critical - they don't all sound the same.

The results are a comprehensive improvement in sound.  I notice the cymbals most, while a musician-friend describes instrument bodies becoming more lifelike.  Overall the picture becomes more clear and less "digital".

I haven't done any direct comparisons between my rig and standard computer burns, although good software and blanks should give a taste or more of the potential.

[miklorsmith]

Great resource for looking at drive quality is CDRinfo.com

They measure error-rates and jitter production at various recording speeds.  They often do head-to-head comparisons too.

Plextor Pro drives include software for tallying C1 and C2 errors.  Good burns show reduced errors vs. original discs and lesser blanks.