Optical Drive and Library SCSI-2 Command Reference

SCSI-2 Drive Command Set
Numerical List of Commands
Chapter 22-4
Table 2-2 Group 1 and 2 Commands (10-byte command)
Code
(hex.)
Name Description Page
Number
25H Read Capacity Reads the capacity of the
optical disk
2-80
28H Read Reads data from the specified
logical block address
2-82
2AH Write Writes data to the specified
logical block address
2-84
2BH Seek Moves the optical head to the
physical track where the
specified logical block exists
2-87
2CH Erase Executes erase operation from
the specified logical block
address on rewritable disks
only
2-88
2EH Write and
Verify
Writes data to the optical disk
and then verifies the written
data by checking the error
correction code
2-90
2FH Verify Verifies the data starting from
the specified logical block
address by checking the error
correction code
2-92
34H Pre-Fetch Transfers the specified
number of data blocks starting
from the specified logical block
address to cache memory
2-94
35H Synchronize
Cache
Initiates the writing of all
cached write data to the
optical disk
2-95
37H Read Defect
Data
Reads the optical disk defect
information
2-96