[SharePoint Ribbon] Add SplitButton needs Command="InsertImage"!!

I am adding SplitButton to the Media Group in the Interst Tab. However, if i supply Command="InsertImage", then the SplitButton works just fine, if i remove it the SplitButton gets disabled! The problem is that i have a forced item in the menu called "From SharePoint", although i have two buttons only in my SplitButton, but it appears 3.

Here is my code for the SplitButton:

<?xml version="1.0" encoding="utf-8"?>
<Elements xmlns="http://schemas.microsoft.com/sharepoint/">
  <CustomAction
      Id="COB.SharePoint.Ribbon.NewGroupInExistingTab"
      Location="CommandUI.Ribbon">
    <CommandUIExtension>
      <CommandUIDefinitions>
        <CommandUIDefinition Location="Ribbon.EditingTools.CPInsert.Media.Controls._children">
              <SplitButton
                  Id="Ribbon.EditingTools.CPInsert.Video"
                 Command="InsertImage"
                  CommandMenuOpen="InsertImageMenuOpen"
                  CommandMenuClose="InsertImageMenuClose"
                  Image16by16="/_layouts/images/lg_icwmd.gif"
                  Image32by32="/_layouts/images/lg_icwmd.gif"
                  LabelText="Metro Blogs Videos"
                  MenuAlt="Metro Blogs Videos"
                  Sequence="20"
                  TemplateAlias="o1"
                  ToolTipTitle="Metro Blogs Videos"
                  ToolTipDescription="Metro Blogs Videos">
                <Menu Id="Ribbon.EditingTools.CPInsert.Media.Image.Menu">
                  <MenuSection
                    Id="Ribbon.EditingTools.CPInsert.Media.Image.Menu.Video"
                    DisplayMode="Menu"
                    Sequence="10">
                    <Controls Id="Ribbon.EditingTools.CPInsert.Media.Image.Menu.Image.Controls">
                      <Button
                        Id="Ribbon.EditingTools.CPInsert.Media.Image.Menu.Image.FromComputer"
                        Sequence="10"
                        Command="UploadVideoFromComputer"
                        LabelText="Insert ImageFrom Computer"
                        ToolTipTitle="Insert ImageFrom Computer"
                        ToolTipDescription="Insert ImageFrom Computer"/>
                      <Button
                        Id="Ribbon.EditingTools.CPInsert.Media.Image.Menu.Image.FromAddress"
                        Sequence="20"
                        Command="UploadVideoFromAddress"
                        LabelText="Insert Video From Address"
                        ToolTipTitle="Insert Video From Address"
                        ToolTipDescription="Insert Video From Address"/>
                    </Controls>
                  </MenuSection>
                </Menu>
              </SplitButton>

        </CommandUIDefinition>
      </CommandUIDefinitions>
      <CommandUIHandlers>
        <CommandUIHandler
        Command="UploadVideoFromComputer"
        CommandAction="javascript:UploadVideoFromComputer();"/>
        <CommandUIHandler
        Command="UploadVideoFromAddress"
        CommandAction="javascript:UploadVideoFromAddress();"/>
      </CommandUIHandlers>
    </CommandUIExtension>
  </CustomAction>
  <CustomAction
    Id="UploadVideo.Script"
    Location="ScriptLink"
    ScriptSrc ="/_layouts/1033/MicrosoftServices.Social.MetroBlogs/JavaScripts/RibbonCustomActions.js"/>
</Elements>