The best CD treatment system is Auric Illuminator which does seem to consistently make a slight overall improvement.
This includes a black edge marker and polishing gel combination. Edge marking alone does not offer a noticeable
improvement to me. Before you become obsessed with tweaking Cds you must get duplicate CDs to compare treated vs untreated version to really see if any improvement is occuring, otherwise it is easy to convince yourself that you hear an improvement when usually there is none.
And of course NEVER apply any tweak to your CDs which cannot be completely removed, or you will reget the day
your valuable CD collection was altered.
This includes a black edge marker and polishing gel combination. Edge marking alone does not offer a noticeable
improvement to me. Before you become obsessed with tweaking Cds you must get duplicate CDs to compare treated vs untreated version to really see if any improvement is occuring, otherwise it is easy to convince yourself that you hear an improvement when usually there is none.
And of course NEVER apply any tweak to your CDs which cannot be completely removed, or you will reget the day
your valuable CD collection was altered.