public static boolean checkStreamType(int header) {
		if (header == -1)
			return false;

		boolean oldFormat = (header & (byte) 0xC0) == (byte) 0x80;

		if (header != (byte) 0xC8
				&& !(oldFormat && ((header & (byte) 0x3C) >> 2) == 8)) {
			return false;
		}

		return true;
	}