Zencoder
Zencoder is the creator of an open-source HTML5 video player, Video.js, built with Javascript, HTML, and CSS. Video.js plays video via native playback in all HTML5 browsers and devices, or through Adobe Flash when HTML5 playback is not available.
Google Video
Winamp and Windows Media Player cannot play the unmodified .avi file because the non-standard file header corrupts the file. However, Media Player Classic, MPlayer, the VLC Media Player and GOM Player will play the unmodified .avi file, and the Google .mp4 file. Media Player Classic can do so only if an MPEG-4 DirectShow Filter, such as ffdshow, is installed. Most Linux media players (including xine, Totem, the Linux version of VLC Media Player, and Kaffeine) have no problem playing Google's .avi format.