Hi, In work each month I film some footage on a Canon HD legria camera and edit it in final cut express. When I export the final film file it always plays perfectly on my computer but i then upload to a server and back down onto some screens located around the offices and the audio moves out of sync with the video, usually by about a second. The camera frame size is 1440x1080, Vid rate is 25fps, the audio rate is 48.0KHz and the audio format is 16 bit integer. I exported using H.264 compression, I changed the dimesions to 1280 x 720 and I de-interlaced the source video, i left the sound settings in fce on default which is 48KHz and I greatly compressed the actual quality of the clip, as it needs to be uploaded to a server. Hopefully somebody can see the error in my approach.