Ever since CD's came out there have been a slew of treatments, ranging from polishing, edge treatment, mats, blitzing with light, and more. I've long since lost count. Compared to Vynyl, this "wonderful" medium has turned out to be something less than perfect. It would be nice to know which of these treatments is the most efficient and which are nonsense. I rather like the approach which appeared a while ago which consists I think of extracting all the data from the disk, transferring it to a HD and reshaping it (?) before playing. Was that Abbington or who? The concensus would seem to be that the manufacturing process is slip-shod, the material dubious and then the poor laser (assuming all things to be perfect) has to find it's way thru a host of imperfections and spurious data before reading the actual musical data. Just musing...