CD duplicate...


hi AuGonErs,
I am a little confuse on the sound quality for a copied music CD.let say if i have an orginal audiophile CD and copy it with the best blank CD available on the market.would the CD sound the same as the original?is there a different from using the computer to copy then the CD recorder?please help.
thanks
ttrhp
Jea48, Theta Data II, GW labs DSP, Museatex Bitstream, John Wright modded conplete with black gates, Joule LA100 mk III, Atma-Sphere S-30, Coincident Victories. The system is very revealing. The digital front end is ridiculously good for the money. Cables are coincident TRS speaker cable, Purist Museas and Sonoran Plateau for IC's, Harmonic Tech platinum digital IC's.
The reason the duplicate can be better than the source can be found by reading the 6moons article on EAC.
Since cd's are stamped. the lands and grooves representing the data may not be perfect. Jitter is caused in this case and the transport attempts to perform error correction to compensate. The transport can only read what is reflected by the laser. When the pits in the disc are not well defined, the slight timing errors may be introduced into the data stream.
With EAC, the computer reads the data on the disc, determines the improperly defined data, sometimes reads this hard to read data several times to derermine what is there and creates an copy of this data. When burned onto a good disk, the data is written more precisely than say a hundred CD's running through a stamping machine.
It is like trying to read somebodies messy hand writing. If somebody takes the time to copy it word for word neatly, it is easier to read. If it is easier for your transport to read....
As I stated, obvious improvements were made on poorly recorded and average discs. With really well recorded material such as bluenote or chesky, the differences were negligable. Probably only due to the black disk being used for the copy.
Jea48
To add to Nutella, the CD-R copy "can" sound better because the data copied is easier to read by your CD player than mass produced CD. The physical burning with laser used to copy data to CD-R is different and superior process to mass produced stamping for commercial music CDs. Also the dyes, metal layer, and protective coating can be superior with quality blank CD-Rs.

Different brands of blank CD-Rs can sound slightly different, black CD-Rs are popular as well as premium brands like Mitsui. The quality of the CD-R drive doing the burning, laser used etc can also vary results. Finally different burning software can have variable results, most popular commercial brands are Roxio, Nero, Musicmatch, Recordnow. Exact Audio Copy (EAC) is available as free download.

Anyway fun and inexpensive to experiment with, as mentioned above most dramatic improvements can be heard on CDs that are not well recorded and have typical CD grain/glare/sibliance. Almost all new computers with CD-R drive have some CD burn software installed so play around and experiment....or just skip all the trail and error and check into getting tricked out Reality CD burner mentioned in Positive Feedback article.
I have not experimented with home audio dual deck CD recorders, and not sure how they compare to computer copied CD-R. Be interested to hear anyone who has tried both methods and which they prefer.
I have a Pioneer Elite PDR19 and have made copies on to the new MFSL blanks and can only hear the difference on a local dealers 100K plus system and slight "depth of feild" at that. SO I beleive for my system that I get a exact copy.
Here is another very interesting in depth aticle about experimenting with different CD-R copy techniques for audiophiles:

http://www.genesisloudspeakers.com/whitepaper/Black_CDsII.pdf