do burnt CD copys sound as good as originals?

I know to my ear, my newly burned CD-R's sound unbelievably better than the source CD material. An article I have read about BLUR (Burnout Length Under Run) states that it gets a better longer burn when re-recording from CD's. The engineer also stated that the specific burner in your computer was very important to the quality of the final product. Now, my burns from downloaded MP3's sound great also, usually depending on higher bit rates of the MP3.I just wanted to add my two cents to the discussion, and give my humble opinion that I prefer to listen to my burnt CD's before any other source.

in general, i have found that i prefer the original to the copy. the difference , at times has been close.

on several occasions, because the copies have some subtractive coloration, i have preferred them to a poorly recorded original.

however, when dealing with a well recorded CD, the original will probably sound better than a copy.

What I've realy realized that sometimes there are errors in burning that cause skipping.
Don't really know if it's CD quality or software? I used iTunes -- horrible, but Media Monkey is much better.