def METHOD_NAME(self):
    #
    # read the OLE directory and see if this is a likely
    # to be a FlashPix file
    try:
        self.ole = olefile.OleFileIO(self.fp)
    except IOError:
        raise SyntaxError("not an FPX file; invalid OLE file")
    if self.ole.root.clsid != "56616700-C154-11CE-8553-00AA00A1F95B":
        raise SyntaxError("not an FPX file; bad root CLSID")
    self._open_index(1)