Note:  This is SGI firmware for the 5.xx "Peregrine" DDS-2 drives but
seems to work with some DDS-1 drives (with 5.xx firmware) however,
this results in a "write-only" drive.  It also appears that once
this version has been flashed to a DDS-1 drive, it is not possible
to re-write the original firmware.

Use at your own risk.