mediaplayer -> play

Here is my code....
with table1 do
     begin
     if (Table1.findkey([timetostr(mytime)])) then
     Begin

Ole1.CreateObjectFromFile('c:\homework\wakeup\Orch2.avi',FALSE);
          Ole1.SizeMode:=smAutoSize;
          Form1.MediaPlayer1.Filename:=Form1.OpenDialog1.Filename;
          Form1.MediaPlayer1.Open;
          Form1.mediaplayer1.Play;   ////////////////////
          //Form1.MediaPlayer1.Enabled:=TRUE;
          //Application.MessageBox('Found','Search Message',mb_OK);
          //LAbel2.Caption:='asfsdaf';
     end;
     end;

The problem is the line that is Form1.mediaplayer1.Play; tells me it
needs another parameter.
What the program does is search a database for times and if it matches
the clock time it will play the avi file or song.

Thanks in advance
Michelle Brodeur