Kitty, I also had the Sony DVP-300 DVD player (I guess it's now the $250 Sony 360). The audio sound of CDs and DVDs on my Sony S9000ES is so much better than with some of the $600 DVD players I tried, and my own Sony 300. Both the CDs and DVDs are more dynamic and clean. Don't forget, if you play DVDs, it's just as important to have improved DVD sound. With the MSB, you would not be improving your 5.1 DD sound when playing DVDs. I think you would be better off buying the 9000 for $1,100 than spending the same amount on the MSB with all the recommended options. you would also get improved video and SACD.
