Menuitem clicked repeating multiple time

Question

I am new to C# I manually populate a context menu with a item click event populated from a listbox of video files located on my drive. The click events fires as expected but repeats 4 times? I only want it to go to the click event once.

 

Populate menu using listbox code. When a menu item is in mouse hover it creates and populate a menu with a item click event as shown below. The issue is once I click a menu item it goes back to the item click event 4 times on a single click.Being as I am converting mp4 to mp3 files it is very time consuming is there a way I can stop it from running the click event multiple time I tried using a bool statement I even tried making the click event wait using async void. Any help would be appreciated. Thanks in advance.

private void CsConvertMP4ToMP3_Hover(object sender, EventArgs e)
       {

           CSselectVideoFile.DropDownItems.Clear();

           foreach (String Item in lstVideoFiles.Items)
           {
               CSselectVideoFile.DropDownItems.Add(Item);
               foreach (ToolStripItem mnuitem in CSselectVideoFile.DropDownItems)
               {
                   //Add click event hander for each new menuitem added
                   mnuitem.Click += new EventHandler(item_Click);
               }
           }
       }

       void item_Click(object sender, EventArgs e)
       {
           ToolStripItem clickedItem = sender as ToolStripItem;
           ConvertVideoToMP3(MP4Name);
       }