Just a suggestion, why don't you encode your videos to xvid/avi or h264/mkv instead? I can assure you that there wouldn't be any loss in video quatlity.
In general, when encoding a 640x480 video using xvid or h264, a bitrate of 1500kbps is more than enough. I don't know what video source (video feed) you were using, but judging from the video quality, I say you had either resize and enlarge your videos, or had chosen a very bad program to encode your files.
BTW, yours the only thread I downloaded from, because I don't understand any other language besides English.
Thank you so much for all the hard work, bringing us the latest tennis match day after day.