CD duplicate...

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

Jea48...my listening equipment for digital is:

Sony DVN 775V CD/SACD player
Dynaco Pat-5 preamp modified by Frank van Alstine
Dynaco ST-150 amp modified by Frank van Alstine
Rectilinear III speakers re-wired and modified
Creative Cable Company 12.0 interconnects
Creative Cable Company speaker cables
Creative Cable Company Power Conditioners

I have been able to hear the difference, though, on any decent system I've tried the A/B comparison.

Another thing...Black CD-R's are often used for gaming for very fast loading with low error rates. I've used Memorex Black CD-R's purchased from Best Buy. I've heard that the best are 'Pro-Disc Diamond Black' but I haven't purchased any yet.

Thanks Nutella and Pbowne for sharing with us the make up of your systems. It adds a lot of weight to your a/b comparison findings and opinions. Only fair to give you mine.
Arcam Alpha 9 CDP /with Audioquest pc
Sonic Frontiers SFL-1 preamp
Audio Research LS3 preamp
Audio Research VT50 power amp
ProAc Studio 200 speakers
Audioquest Diamond X2 ics
Audioquest Sterling 3 speaker cable.
Megasam I read the article in your last post. Is was very interesting, thanks for the info. I just spent about three hours in my audio room. At the present time I am using the SFL-1 for the preamp. I picked out three cds to copy for an a/b comparison, Eric Clapton "Slowhand", Jackson Browne "For Everyman", and Don Henley`s "Greatest Hits". Not really bad sounding cds, so so. I should mention here if I have a cd That is kinda dead, bassy sounding I spin both sides in the "Bedini ultra Clarifier". I did not do It on these three cds at this time, but I know I have in the past. Also let me say I never a/b ed avg sounding cds, only good sounding cds. I wanted to see how close the copy was to the original.
The a/b comparison,,, I was just amazed, there is defintely a noticeable difference. Clapton`n "Slowhand" track #3 ,Lay Down Sally, the copy is more detailed, cleaner, more stronger toe tapping bass. I a/b ed these two songs back and forth probably 20 times. Copy, more detailed, cleaner, tighter bass! The electric guitar, and bass guitar really sounded good. I Just couldn`t get over that bass. Then I moved my focus from the better detail and tighter bass to Clapton`s voice. I listened to the original cd track "Lay Down Sally" over and over at least 5 times. His voice full,smooth,sounding. Then I loaded the copy, Something was different, Clapton`s voice was a little thin, not quite as smooth. Not bad sounding but different. Some thing else was different also, that great bass was back but seemed to be a little over powering Clapton`s voice.
I moved on to Jackson Browne`s "For everyman". Again I noticed more detail it sounded pretty good. I zeroed in on track #4 "I Thought I Was A child" I played it several times This time concentrating on Browne`s voice And the piano. Then I loaded the original, Again I heard a difference in the vocal and definitely in the piano. The piano had more authority, Just sounded more natural.In regards to Browne`s voice, I think the biggest difference was in the nasal sound of his voice.
By the time I got to Don Henly`s cds I was getting a little tired of the whole thing. Basically I found about the same thing. The copy sounded pretty good. I went back and forth between the two cds. "The Boys Of Summer" and "The End Of The Innocence" Henley`s voice was different. In the original the nasal sound of his voice seemed to be a little fuller and smoother than the copy.
Which is the correct sound of the vocals of these three male singers? And those pianos, I think the original cds sound more natural.
If any of you get the chance will you do an a/b comparison of some cds with vocals and pianos, and just focus in on the vocals and the piano. Share your findings with the rest of us.
I have these albums on vinyl I`ll pull them out and play them and listen...
One other note, when ever I have done an a/b comparison of a really good sounding cd to a cd-r copy Like Diana Krall or Norah Jones, I can always pick up the differences in the vocal and the piano. Maybe I need a new cdr recorder.

As long as you duplicate within the digital domain
the copy will be 100% identical. Of course that requires you to use the digital ins/outs AND you'd have to use a masterclock. If you haven got clock inputs and outputs
I wouldn't bother making digital copies.