It turns out, as I suspected, that the error correction systems in digital disc players don't produce error-free results, as indicated in the following excerpt:
But hang on a minute, the Music Server still gets the data from CDs?You may be asking if CD players have trouble extracting the data on the CD then doesn't the same issue exist for the music server. The answer is that the methodology for putting the data onto the music server hard disk is quite a different process to that used when a CD is playing music. For obvious reasons when you play a CD in your hifi then the CD is read once only in real time, any errors have to be dealt with on the fly there and then. On the other hand when you rip a CD into the Music Server then you use a computer. Computers are designed to read and process data. Thus the CD reader can read the disk multiple times to try and extract the data rather than relying on one read and then error correction. Furthermore there are some sophisticated programs to read CDs ( such as Exact Audio Copy ) that correct for misalignment of the laser and use checksums to ensure a perfect bit copy. All of this means that the digital tracks on the hard drive are the best possible source possible. Remember for the best music production the source must be of the highest quality.
By using a Bedini Clarifier, which evidently neutralizes static charges on the bottom of the disc, the raw (uncorrected) error rate is reduced, and this reduces the (partially) corrected error rate, thus improving the sound. Mystery solved.