A new user in a corporate setting tried to view one of our videos and the player said connecting to media and playing but nothing happened - it did not buffer and said playing but stayed at 0s in the timer. This happened a few times and then it started playing. I checked the server and I could play the video while she experiened the problem so I know it was not a server issue. The video was encoded at 287kbps - so I assumed that maybe this company has fluctuating bandwidth and that 287 was too high so i decided to use MBR at 148kbps and 109kbps. Since most of the video does not include too much movement the quality is reasonable at these bit rates. I was concerned to use 287 and 148 in case it fluctuated between the 2 and would keep buffering the video as the bitrate changed for this user. 2 questions: 1. Is my reasoning of what could have caused the problem reasonable given other experiences with bit rates. 2. I think it is reasonable to assume that in a corp environment a user should at least have 148kps to use. Are the 148 and 109 too close i.e. is it likely to cause excess buffering as the player switched between them if there are small variations in bandwidth avail? I do not want to drop to the second but rate 50 kbps as this will affect quality. Thanks