Usually somewhere between 400-600 Kbps is average for standard video quality. Higher quality video is often 800-1200 kbps, but for many people this is too high a data transfer rate, so you should not have something as high as your only indicator if you do not know what your target audience will have quick connections.
It's also a good idea to offer a low bitrate stream (somewhere around 250-300 kbps) for people with very slow connections, although it’s hard to get a video to look good at that speed even with H.264, and if you are still using VP6 Then do not worry, because it will look terrible.
HD (720p), - 2500 /, . ( , YouTube 1000 / , HD, , . .)
272kbps/544kbps/1088kbps // .