For sale, one Marigo Audio Evolution Audio Mat Signature, designed for CDs, SACDs, DVDs, and Blu-ray discs. Resonance control product for digital playback ("dramatic improvements in dimensionality, resolution, bass definition, high frequency purity and ambient information retrieval"). This thing does work! Works with both drawer loading and top loading loading transports. I believe this particular mat is an earlier iteration of this product. Paypal and shipping included in asking price.