The demagnetization of a CD is for the label, not the CD itself. Sometimes the ink used for the printing contains ferrous particles.
System tuning tips from Hi Fi Plus
The folks from Hi Fi Plus put on a system-tuning seminar at RMAF. Their recommendations included: (1) use cables from only one family in your system, (2) get a non-resonant, non-ferrous component rack, and (3) clean your cd's....They had equipment problems during the session of the seminar I attended, so I didn't get to judge the actual improvements gained by these tweaks, but I'm interested in just how important/helpful you all have found these suggestions to be...