how we can play some formats the same as (*.avi, *.mp4, *.wmv, *.flv, *.mp3, *.wav, *.wma, ...) in real time as a web part in web Page without needing to first download it and then play them?

If you want to embedd a youtube-video you can just a Content Editor Web Part (CEWP), enter as source text <object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/hBpPt2q7S0A&hl=nl_NL&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/hBpPt2q7S0A&hl=nl_NL&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object> If you have a wmf-File uploaded on your site you can embed it like this within your CEWP with this source <EMBED SRC="http://mysite/shared documents/myvideos.wmv" AUTOSTART=FALSE LOOP=FALSE WIDTH=200 HEIGHT=200 ALIGN="CENTER"> </EMBED> By setting Autostart the video will automatically be played when opening the site with the CEWP. regards, Markus

what you mean by youtube embed. i directly send my video to sharepoint site to play on web site that not any connection to internet.

This was an example for using youtube-integration. In case you have your own video stored within your intranet-environment then take the second example and replace the Url with a valid UNC path. Enter the code into a CEWP and you're finished.