static byte[] UnzipSlices(byte[] bufferZip)
    {
        using (GZipStream unzipStream = new GZipStream(new MemoryStream(bufferZip), CompressionMode.Decompress))
        {
            byte[] buffer = new byte[4096];
            using (MemoryStream memoryStream = new MemoryStream())
            {
                int bytesRead = 0;
                do
                {
                    bytesRead = unzipStream.Read(buffer, 0, buffer.Length);
                    if (bytesRead > 0)
                        memoryStream.Write(buffer, 0, bytesRead);
                } while (bytesRead > 0);
                memoryStream.Write(buffer, 0, bytesRead);
                unzipStream.Close();
                return memoryStream.ToArray();
            }
        }
    }