Why are Internet videos blurry?
Video files that work on the Internet are heavily compressed. The frame rate is brought down dramatically, and the picture information in each frame is reduced, too. For example: The RealVideo format that is optimized to stream on a 28 k Internet connection has a frame rate of about 0.25 per second. That’s one frame every 4 seconds! Now, compare this to a video frame rate of 30 frames per second on your VCR. The “RealVideo encoder” kind of “smears” subsequent frames of the original video into each other to reduce the frame rate. That’s how it gets blurry. Rule of thumb: The more motion, the blurrier the Internet video. It’s pretty much the same with other common encoders.
