Video Codec: H.263 H.264

Н.263 – the codec for video compression, initially created for low-bit rate video conferences. Nowadays it has found a wider use in the Internet; it is used in Flash Video, YouTube, and Google Video.
Н.264 – the standard of compressing videos, meant for achieving a high level compression video by keeping high quality image. It is used in digital television of high-definition (HDTV) and in many other areas of digital video.