protected void calcDIR_WrtDate() {
        byte[] bTemp = new byte[2];
        for (int i = 24;i < 26; i++) {
            bTemp[i-24] = bytesOfFAT32Element[i];
        }
        Integer temp = byteArrayToInt(bTemp);
        DIR_WrtDate =  (temp & 0b11111) + "." + ((temp & 0b111100000) >> 5) + "." + (((temp & 0b1111111000000000) >> 9) + 1980);        
    }