Hi, can somebody please explain to me what is happening in my PC (Windows 7 Ultimate) when I stream HD (H264 ts) files over my home network to watch on my Hummy? This always worked fine for SD (mpeg2) but falls over after 1h16m on an HD film, 1h44m on another. Always at the same point, which is not an edit, nor any fast action etc. to need high BW. I believe something is hitting a limit at 4GB? I seem to remember reading that WMP has something to do with the streaming process, could it be that I have not set this up properly? I don't really use it for anything else. BTW both films play through to the end fine if I FTP them back onto the Hummy. Many thanks for any thoughts.