.mp3/.wma/.ram/..., which one am i supposed to use??? Options

[x_UHTHEENUH]

what type of music am i supposed to use for this music player?

<!-- begin code provided by createblog.com --><br /><object<br />id="darkplayer"<br />codeBase="http://activex.microsoft.com/activex/controls/mplayer/en/nsmp2inf.cab#Version=5,1,52,701"<br />type="application/x-oleobject" height="0" standby="Loading Microsoft<br />Windows Media Player components..." width="0"<br />classid="CLSID:22d6f312-b0f6-11d0-94ab-0080c74c7e95"><br /><param NAME VALUE><br /><param NAME="ShowControls" VALUE="0"><br /><param NAME="ShowStatusBar" VALUE="0"><br /><param NAME="ShowDisplay" VALUE="0"><br /><param NAME="DefaultFrame" VALUE="Slide"><br /><param NAME="Autostart" VALUE="1"><br /><param NAME="Loop" VALUE="True"><br /></object><br /><form name="form"><br /><p style="text-align: center"><br /><select style="FONT-SIZE: 8pt; BACKGROUND:#transparent; WIDTH:<br />150px; COLOR: #33666; font-face: verdana" name="playlist" size="1"><br /><option value="0">SONG NAME</option><br /><option value="1">SONG NAME</option><br /><option value="2">SONG NAME</option><br /><option value="3">SONG NAME</option><br /><option value="4">SONG NAME</option><br /><option value="5">SONG NAME</option><br /></select><br><br /><input TYPE="BUTTON" NAME="darkplay" VALUE="play"<br />OnClick="play(document.forms['form'].playlist);"><br /><input TYPE="BUTTON" NAME="darkpause" VALUE="pause"<br />OnClick="document.darkplayer.Pause(); playstate=2;"><br /><input TYPE="BUTTON" NAME="darkstop" VALUE="stop"<br />OnClick="document.darkplayer.Stop(); playstate=2;"></p><br /></form><br /><script language="JavaScript"><br /><!--<br />var playstate = 1;<br />shuffle = 1; // set to 0 to always play first song in list // set to 1<br />to randomly choose the first song to play<br />songs=new Array();<br />songs[0]="SONG URL";<br />songs[1]="SONG URL";<br />songs[2]="SONG URL";<br />songs[3]="SONG URL";<br />songs[4]="SONG URL";<br />songs[5]="SONG URL";<br />if (shuffle == 1) {<br />var randsg = Math.floor(Math.random()*songs.length);<br />document.darkplayer.FileName = songs[randsg];<br />document.darkplayer.scr = songs[randsg];<br />document.forms['form'].playlist.options[randsg].selected = true;<br />}<br />function play(list) {<br />if (playstate == 2) {<br />document.darkplayer.Play();<br />} else {<br />var snum = list.options[list.selectedIndex].value<br />document.darkplayer.FileName = songs[snum];<br />document.darkplayer.scr = songs[snum];<br />}<br />playstate = 1;<br />}<br />//--><br /></script><br /><!-- end code provided by createblog.com -->

i've tried mp3's already &it didn't work but maybe im just doing it wrong. but if im not what am i supposed to use?