HP 2600fx - Optical Disk Drive Command Reference Manual page 53

NOTE
SCSI-2 Drive Command Set
Format Unit Command (04H)
CmpLst A Complete List bit of 1 indicates that the previous
G-list is not used to make the defect list.
A CmpLst bit of 0 indicates the previous G-list is added
to the defect list.
Defect List
Format The Defect List Format can be either Block Format (0)
or Physical Sector Format (5).
MkCDA Has no effect on the drive.
MkPlst Has no effect on the drive.
ErsCntl An Erase Control bit of 0 indicates that an erase is
automatically performed before writing the data when
the drive is directed to perform the certify operation by
the initiator.
An Erase Control bit of 1 suppresses the erase
operation.
For Write-Once, this command can be executed only once during the
lifetime of a disk. When an initiator attempts to execute the Format Unit
command more than once for write-once media a CHECK CONDITION
status is returned. The Sense Key/Additional Sense Code is set to
ILLEGAL REQUEST/Invalid Command Operation Code.
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