Ozzy:
My Oppo 203 Blue Ray player has been carefully tuned with a Synergistc Research Blue fuse, multiple ECT's inside, Total Contact on all capacitors, chips, and pin connectors. After this was all broken in and stabilized, I added one Bybee IQSE inside the player and located it directly above the digital circuit board. This benefited the audio and visual quality only one small "click" in improvement.
I have since placed an Omega E Mat on top of the player. There has been a greater additional improvement in audio and video. The E Mat caused an immediate change but really began to excel after 12 days of being in the same location.
David Pritchard