private static void doCreate() throws MVDToolException
	{
		try
		{
			File file = new File( mvdFile );
			if ( file.exists() && !file.delete() )
				throw new MVDToolException( 
					"Couldn't delete existing file "+mvdFile);
			else
			{
				MVD mvd = (description==null)?new MVD():new MVD(description);
                mvd.setDirectAlign( directAlignOnly );
				MVDFile.externalise( mvd, file, folderId, 
					Utilities.loadDBProperties(dbConn) );
			}
		}
		catch ( Exception e )
		{
			throw new MVDToolException( e );
		}
	}