code: public void removeTag(RandomAccessFile raf) throws FileNotFoundException, IOException
  	{
  		if (headerExists)
  		{
  			raf.setLength(raf.length() - TAG_SIZE);
  			headerExists = false;
  		}
  	}
docs: Removes the id3v1 tag from the file specified in the constructor
  by reducing the file size
  @return true if the tag was removed successfully
  @exception FileNotFoundException if an error occurs
  @exception IOException if an error occurs