It is impossible for any copy to be better than the original. If a copy is made from the original it is possible for it to be close to the original but not better.
For something to be better is has to either have more of the right information, or less of the wrong information. It is possible to alter the sound of a recording. It is not possible for the home audio enthusiest to be able to choose the tonal ranges to fix, and which ones to leave alone. The simplest example of this is Dolby noise reduction, but this alters the sound of the entire recording.
Besides the sampling rate of digital recordings is still too low to even make recordings that are as good as the originals, much less better than the original!
For something to be better is has to either have more of the right information, or less of the wrong information. It is possible to alter the sound of a recording. It is not possible for the home audio enthusiest to be able to choose the tonal ranges to fix, and which ones to leave alone. The simplest example of this is Dolby noise reduction, but this alters the sound of the entire recording.
Besides the sampling rate of digital recordings is still too low to even make recordings that are as good as the originals, much less better than the original!