CD Drive Property check

private void btnGetCapability_Click(object sender, EventArgs e)

        {

            Dictionary<UInt16, string> list = new Dictionary<UInt16, string>();

            list.Add(0, "Unknown");

            list.Add(1, "Other");

            list.Add(2, "Sequential Access");

            list.Add(3, "Random Access");

            list.Add(4, "Supports Writing");

            list.Add(5, "Encryption");

            list.Add(6, "Compression");

            list.Add(7, "Supports Removable Media");

            list.Add(8, "Manual Cleaning");

            list.Add(9, "Automatic Cleaning");

            list.Add(10, "SMART Notification");

            list.Add(11, "Supports Dual-Sided Media");

            list.Add(12, "Ejection Prior to Drive Dismount Not Required");

            ManagementObjectSearcher mos;

            mos = new ManagementObjectSearcher("Select * from Win32_CDROMDrive where Caption='" + comboBox1.SelectedItem.ToString() + "'");

            foreach (ManagementObject mo in mos.Get())

            {

                UInt16[] x = (UInt16[])mo["Capabilities"];

                foreach(UInt16 i in x)

                {

                     listBox1.Items.Add(list[i].ToString());

                }

            }

        }