Hello everybody, I'm about to buy a new DVD player to match my good (?) old Onkyo TX-DS595 AV receiver. I looked at the Onkyo website, but I cannot understand the difference between the two models in the title. Also, does anybody know those models? Are they any decent? And last, in the tech specs I saw "Progressive Scan" for those two models and "PAL/NTSC Progressive scan" for the "502" and "503" models. Does this mean anything different? Thank you very much, Gianluca.