I'm not sure if this belongs in the "Tweaks" section, so here goes... I was curious to hear of anyone's experience with demagnetizing CDs. Did you hear a difference after running the disc through your player? How often do you need to demagnetize? What specific demag CDs can you recommend? I've read plenty about them in Music Direct and Audio Advisor's catalogs, but am not sure if they're "snake oil" or what. I mean, to me, they seem to have some merit. Thanks!