streaming recorded videos

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C#

ASP.NET

hey guys ....i want to stream my recorded video files on a webpage on my website.i dont know how to do it.on the page i want to give the option to the user of which video he desires to view.i will be storing the videos in mpeg format.i would also like to know whether storing the videos in flv format will add efficiency to the streaming.
i could not find a code here.any help will be greatly appreciated.thank you