Leec, I do think the Nespa treatment is more significant than duplicating and proper cleaning. Of the many cd-rs I have made already, I found one where Nespaing the original and then making a second cd-r and Nespaing it was better than just Nespaing the cd-rs I had already made.
Being lazy I decided to just Nespa my old copies. In every case there has been a further substantial improvement. I cannot, however, say that I will rely only on the Nespa. It may be a majority of the improvement you can make on cds, but I want it all.
I have abandoned the Audio Desk trimmer on all but my sacds as it make no improvement either on the copies I make of cds. It does improve the originals, but this doesn't seem to transfer to copies made of it.
Curiously the Furatech demagnetizer has a minor effect on cd-rs. Nothing of the magnitude of its effect on cds, however.
Being lazy I decided to just Nespa my old copies. In every case there has been a further substantial improvement. I cannot, however, say that I will rely only on the Nespa. It may be a majority of the improvement you can make on cds, but I want it all.
I have abandoned the Audio Desk trimmer on all but my sacds as it make no improvement either on the copies I make of cds. It does improve the originals, but this doesn't seem to transfer to copies made of it.
Curiously the Furatech demagnetizer has a minor effect on cd-rs. Nothing of the magnitude of its effect on cds, however.