asp.net website how to play video saved as binary in database

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Dears,
when i save video with extension .mov i can play it on on all browsers correctly using the below code with VideoHandler

 <object width="288" height="300" id="MediaPlayer" type="application/x-oleobject"
  standby="Loading Windows Media Player components..." classid="CLSID:22D6f312-B0F6-11D0-94AB-0080C74C7E95"                    codebase="http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#Version=6,4,7,1112">
<param name="showControls" value="true">
<param name="autoStart" value="true">
<embed width="288" height="300" src="<%# "VideoHandler.ashx?id=" + Eval("id") %>"
type="application/x-mplayer2" showcontrols="1" autostart="0"></embed>
                </object>

but when i save video with extension .flv or .swf it doesn't work, i know this is normal but i used the below code and still can't play on any of the browsers

 <object width="288" height="300" id="MediaPlayer" classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"
                       type="application/x-oleobject" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,40,0">
<param name="showControls" value="true">
<param name="allowfullscreen" value="true" />
<param name="allowscriptaccess" value="always" />
<param name="autoStart" value="true">
<embed width="288" height="300" src="<%# "VideoHandler.ashx?id=" + Eval("id") %>"
type="aapplication/x-shockwave-flash" showcontrols="1" autostart="0" pluginspage="http://www.macromedia.com/go/getflashplayer"></embed>
                   </object>

and i get a message in the video player: "no plug-in available to display this content"
i tried to to install plug-in i get a message means that the plug-in is installed and enabled also i tried the online test for the player it works good so the problem is from my code
how can i solve it??

also i need to solve it because as i read that the best way is to convert all the videos to .flv before saving them into the db and use only one video player (flv) is this right? if yes is there any method to convert them without using any third party or any dll (i need only the clear code and free no dlls no closed controls not third party)
Thanksss