It reminds me of the special red marker you could buy. You would mark the edge of the CD carefully to avoid stray laser beams distorting the sound. Or the techn

It reminds me of the special red marker you could buy. You would mark the edge of the CD carefully to avoid stray laser beams distorting the sound. Or the technique of putting CDs in the freezer, because it gives a crisper sound. And don't get me started on Monster cables. I wish I was making this up, but here's discussion: https://www.audio-forums.com/threads/freezing-cds.104232/ https://www.audio-forums.com/threads/freezing-cds.104232/