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4 - 14 C156-E142-02EN
4.4.4 Data error detection criteria
Table 4.16 lists criteria used to detect ID errors and data errors for data access commands and
error handling.
Table 4.16 ID error and read error detection criteria and error handling
Command ID read error Data error Error handling
FORMAT UNIT 128 MB/230 MB media:
3 read errors in 3 sectors
540 MB/640 MB/1.3 GB media:
2 read errors in 2 sectors
Error in 4 bytes or
more per interleaving
section
Register error
sectors in the PDL
(Primary Defect
List). If there are
many defect sectors,
they are also
registered in the
SDL (Secondary
Defect List).
WRITE (10)
WRITE (12)
WRITE AND
VERIFY and
ERASE
128 MB/230 MB media:
3 read errors in 3 sectors
540 MB/640 MB/1.3 GB media:
2 read errors in 2 sectors
Error in 5 bytes or
more per interleaving
(Except ERASE
command)
Register error
sectors in SDL.
READ (10)
READ (12)
Error free (If no ID can be read,
reassignment is executed.)
Error in 9 bytes or
more per interleaving
section
Respond with
Check Condition.
Sense Key indicates
a medium error.
WRITE LONG 128 MB/230 MB media:
3 read errors in 3 sectors
540 MB/640 MB/1.3 GB media:
2 read errors in 2 sectors
No check Respond with
Check Condition.
Sense Key indicates
a medium error.
READ LONG Error free
(If no ID can be read, the ODD
tries to read from the sector
before and after the possibly
faulty location and performs
reassignment.)
No check Respond with
Check Condition.
Sense Key indicates
a medium error.
VERIFY 128 MB/230 MB media:
3 read errors in 3 sectors
540 MB/640 MB/1.3 GB media:
2 read errors in 2 sectors
Error in 9 bytes or
more per interleaving
section
Respond with
Check Condition.
Sense Key indicates
a medium error.