I have owned a SCD-777ES for a couple of years. I bought it after auditioning both the SCD-1 and the SCD777ES extensively. The physical differences included the feet, the actual box, balanced outputs, and epoxy coated power supply (the actual supplies are identical). First, the SCD-1 was clearly superior in single ended mode. Second, after more than six hours of side by side comparison, I could not tell the difference between the two. As a result, I bought the less expensive 777ES.
Mine has visited Richard Kern twice (last summer for a Superclock and upgraded caps and resistors, a couple of weeks ago for a Superclock II and Richard's transport mod) and I have yet to hear a better digital device, though I admit to not having heard the Meitner.
Mine has visited Richard Kern twice (last summer for a Superclock and upgraded caps and resistors, a couple of weeks ago for a Superclock II and Richard's transport mod) and I have yet to hear a better digital device, though I admit to not having heard the Meitner.