Lite-On LTR-48246S firmware SUSA update corrects a problem with Power Quest's "Drive Image 2000" generating error #1805 "Can not write image file" when backing-up to CD-R media. To update your firmware, download the WINSUSA.EXE firmware. Click on it. When prompted, remove any discs and click "Yes". When the firmware has been updated successfully, click "OK" and "Close". Note: Do not shut down or power-off the system while the firmware update is in progress.