The CRT TV is off the premises, so that is no longer an issue. The TV is about 6 feet away from the BD player. I have a pair of industrial equipment racks where everything is placed in rackmount shelves. They do share a common ground as they are both plugged into the same surge suppressor. The only other thing I can think of is some X10 equipment powerline stuff. I will remove it before my testing tonight just in case. I could also just put the DVD player inside a box with holes in the back for the power and HDMI cable, and hook up the dvd player to a triplite ISO bar, which is supposed to filter out all RFI noise from the the powerlines. What makes this difficult is that I cannot predict when the player will go into "stop" mode, but when it does happens, it happens within 45 mins of the movie. I also don't want to add a lot of things to the experiment as then it becomes that much more difficult to isolate the issue. But I agree, it seems interference is part of the problem. I was going to pick up a 2nd player at best buy today to see if the problem can be duplicated on it as well, but the closest best buys are both out of the player (though they claim they will get some toward the end of the week), so I will try my testing tonight with the X10 equipment removed and all flourescent lighting powered off and the IR receiver blocked to see if the player will play the whole movie. I even tested the movie this morning with the TV powered off (although it was on stand-by) and it still entered the "stop" mode.