def METHOD_NAME(self):
    """Check if a :attr:`text` is a valid SubRip format.
    :return: whether or not the subtitle is valid.
    :rtype: bool
    """
    if not self.text:
        return False
    try:
        pysrt.from_string(self.text, error_handling=pysrt.ERROR_RAISE)
    except pysrt.Error as e:
        if e.args[0] < 80:
            return False
    return True