PALEM4D Hulu sends the file to you at one of five speeds, or bitrates, measured as the amount of data sent per second. When you play a video, the codec Hulu uses depends on the bitrate at which it's sending the video to you. This codec is supported by Flash versions 8.0 and higher, which is installed in more than 98 percent of computers in the U.S.|What makes Android Tick?