Windows Media Audio and Video 9 Series is a breakthrough set of codecs that enables multichannel audio and high definition (HD) video at resolutions up to 1080p. See high definition in action for yourself with these downloads. To deliver ultra-high quality, these clips were encoded at 24 frames per second (fps), and at the resolutions noted of either 1280 x 720 (720p) or 1920 x 1080 (1080p). (Resolutions vary per clip.)