err = scsi_cmd_run(udev, &sc, fd, header, sizeof(header));
if ((err != 0)) {
info_scsi_cmd_err(udev, "READ DISC INFORMATION", err);
err = scsi_cmd_run(udev, &sc, fd, header, sizeof(header));
if ((err != 0)) {
info_scsi_cmd_err(udev, "READ DISC INFORMATION", err);