
SCSI-2 Drive Command Set
Read Defect Data (Group 1) Command (37H)
Chapter 22-96
Read Defect Data (Group 1) Command (37H)
This command reads optical disk defect information. The data returned
starts with a 4-byte header, followed by one or more defect descriptors.
PList and GList A PList bit of 0 and a GList bit of 1 indicates the drive
will return the contents of the defect list (SDL).
A PList bit of 1 and a GList bit of 0 indicates the drive
will return the contents of the PDL.
A PList bit of 1 and a GList bit of 1 indicates the drive
will return the contents of the PDL and the SDL.
Table 2-83 Read Defect Data (Group 1) Command CDB
Byte 7 6 5 4 3 2 1 0
0 Operation Code (37H)
1 Reserved (0)
2 Reserved (0) PList GList Defect List Format
3 Reserved (0)
4 Reserved (0)
5 Reserved (0)
6 Reserved (0)
7 Allocation Length (MSByte)
8 Allocation Length (LSByte)
9 Reserved (0) Flag Link
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