Big-time Hollywood filmmakers are turning to the Internet to scout young, emerging talent. When you think about it, the Internet as a carrier of short independent films makes a lot of sense. Once encoded, the finished computer movie is placed on an Internet server and broadcast to end users through an Internet website. Reproduction without permission is strictly prohibited. Low-light movies generate more video noise and do not compress well.
Steady images compress better because more video information is redundant between frames.
These techniques cause pixels to change almost every frame and wind up producing poor quality Internet video. Remember, your movie is played on a small computer window. It's important to know how to best work with each codec.