I wasn't aware that your experience has been a refudation of burn-in. On the other hand, we could take a symetrical argument and explain your perception. Perhaps your aural memory is such that the gradual changees introduced in the burn in period escape its notice. Perhaps your perception changs along with the piece. I've made up my mind that I want to do a double blind on this (knowing in advance the arguments against that methodology). I was wondering if you have? In regards to: I could easily be converted by converted by evidence more substantive than anecdotal; I think it's important to remember that science begins with the observation, the anecdotal evidence. Reality (if such a thing exists) determines the collection of imperfect models that we call science, not vice-versa. But then again I suppose mathmaticians are always a little skeptical of something so temporary as physics (grin).