MediaElement.js : HTML5 and made easy.
One file. Any browser. Same UI.
Able Player : Able Player is a fully accessible cross-browser media player. It uses the HTML5 or element for browsers that support them, and (optionally) the JW P...
Shumway : Shumway is an HTML5 technology experiment that explores building a faithful and efficient renderer for the SWF file format without native code assista...
SoundManager 2 : Using HTML5 and Flash, SoundManager 2 provides reliable cross-platform audio under a single JavaScript API.
flv.js : An HTML5 Flash Video (FLV) Player written in pure JavaScript without Flash. LONG LIVE FLV!