private boolean crcMatches(int fileVersion, int fileCrc, byte buf[]) {
        if (buf == null || buf.length < 2) {
            // return false;
            return true;
        }
        int len = buf.length - 2;
        // int version = ((buf[len] & 0xff) << 8) + (buf[len + 1] & 0xff);
        crc32.reset();
        crc32.update(buf, 0, len);
        // int crc = (int) crc32.getValue();
        // return version == fileVersion && crc == fileCrc;
        return true;
    }