looking to convert ppt to video

I need to upload a Powerpoint presentation with embedded audio to a website. the accepted formats are : asf, avi, flv, m4v, mov, mp4, m4a, 3gp, 3g2, mj2, wmv, mpg, mpeg, wma, mod, mp3, mts, qt, f4v, m2v, wepm, ogv, mxf, vob, mkv, webm. please let me know the easiest way to do this. I have tried saving it as .mov and when I open it in Quicktime, there is no audio.