[cjensen]

TCP deals with congestion and bandwidth allocation automatically. Decades of algorithms work in your favor if you use TCP.

A single missing packet will seriously mess up your video stream. Remember that long sequences of movie pictures are sent as a single whole image plus delta instructions to generate the rest of the images. A single bad packet can screw up a second of video.

[rustyconover]

Depending on the rate of keyframes in the stream, it could be from anywhere from 3 to 10 seconds. And if the GOP[1] is even larger it could be longer.

[1] - http://en.wikipedia.org/wiki/Group_of_pictures