I have a 24x liteon, and have been making alot of copies of my audio cds lately (to add cd-text for cd changer on stereo).
While I have successfully made one the fly copies using nero and an liteon 16x DVD drive as the reader, I have found that I
get much more consistent and more pleasing results by using EAC.
I first make an image of the audio cd. This also is the step where the cd-text info is added to the songs.
Then I use EAC to burn the image. (Tools ->Write CDR -> load image)
Total time is usually around 7 min to do everything. My computer will burn great with eac and the liteon at 24x and never uses burn-proof.
It is possible to make successful copies with an subpar reader, but if burn proof kicks in, it could actually take longer than making an image
on the hard drive and burning the image.
Any way, the main reason for using EAC is for the Quality. I get perfect copies with this method and fast. I don't have to worry about the
occaisional pop or odd sound that would come in about 1 in 5 audio cds I would burn on the fly.
EAC always does a superb job for me and it is free.