Pioneer DV-578A-S DVD Player with DVD-Audio / SACD
Pioneer 578 - not for SACD
I bought one at Best Buy and picked out a number of SACD and DVD-Audio disc to take home and try out the new machine.  Well on a few of the disc it was very nice but on some there was a horrible popping on some tracks (not just between them).  I went back to the store where they had the machine set up as a demo and I was surprised that it didn't have the same problem.  I then realized that they had it playing through 2-channel and had not used the 5.1.  When set to 5.1 it had the very same problem.  I'll be taking it back and saving some more money for the Denon.