SCSI-3 SBC is an important new part of SCSI-3 that describes commands for direct access block logical unit class devices (i.e., hard drives, worm, optical, and removables). Caching is documented more thoroughly than in the SCSI-2 specification. This part of SCSI-3 includes commands to support medium changer devices such as the Read Elements Status and Move Medium commands. Optical drives have the following additional commands:
- Medium Scan (38H) - to scan for contiguous written or blank block.
- Read Generation (29H) - to return the maximum generation address of a block.
- Read Updated Block (2DH) - to read a specific generation and block number.
- Update Block (3DH) - requests that the drive replace data on the medium with new data.
I did try different versions of Dantz Retrospect and nothing seemed to work.@Chuck(G) Looks like it was Dantz Retrospect Backup, at least for the Storage Dimensions drive. Could have been a special version of it that shipped with the WORM drive. Quite a few OEMs back then included special versions of commercial software that only worked with their drive.
@Mr Fahrenheit This may not be the way you want to go, but I wonder if there's a way to author the disc on a Windows PC. Assuming it's possible to write to an WORM MO in a way that it'll work like a regular disc, perhaps you can create an ISO and just use a PC to write the disc.