DLT8000 Firmware Update version 80 - Servo/Hex version 0250 Updating the firmware on your IBM DLT 40/80GB is an easily applied process. There are several methods of applying firmware to the tape units. The D8_V80.img file is a binary file used by the DLT utility programs found in document MIGR-4GEGY8 on the IBM PC Support web site. Instructions for use and implementation of the various firmware update applets are included with the applets. By selecting back on your browser the files are found under the DLT Utilities selection.