Not sure if I want an SD210 now if I need to do prelim checks on RCE discs. Should I go for something else instead? Panny RV20, Sharp DV700 or Sony 336 for example? Techtronics say that the 210 "may" need prelim checks. Does this mean that I will have to do an R1 swap everytime? I have heard that the JVC 521 plays RCE discs without a problem, when Techtronics say this players needs prelim checks. I am really confused now. Somebody help!