Does faster writing speed reduce CD-R quality?
If you are using professional quality CD-R media in a professional writer, there will be less of a chance of degradation and failure. In truth, the faster you burn a disc; the quality of the copy is lessened from the original. However, this will be noticed more with poor media than professional media. In regards to audio recording, the main question is, will I hear an audible difference? The answer to that is probably not, assuming your media and writer are professional quality.