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R11 Series Drive Command Reference Manual Version 1.00
4.16 READ BUFFER CAPACITY Command
The Block bit is supported.
When a CD medium is inserted in the drive, or no medium is inserted in the drive, the Length of Buffer
field in the READ BUFFER CAPACITY data is set to 131800h. When a DVD medium is inserted in the drive,
the Length of Buffer field in the READ BUFFER CAPACITY data is set to 188000h.
If a WRITE command whose Transfer Length exceeds the Blank Length of Buffer value divided by 800h
(or Available Buffer value), the drive terminates the WRITE command with the Check Condition status,
and set the SK/ASC/ASCQ values to NOT READY/LONG WRITE IN PROGRESS (2/04/08)
4.17 READ CAPACITY Command
The RelAdr bit is not supported and must set to 0.
If empty disc is mounted, the Logical Block Address field in the Read Capacity Data is set to zero.
If a DVD-RAM disc is mounted, the value set by the Logical Block Address field in the Read Capacity Data
was decided in Format Unit Command.
If a non-blank +RW disc is mounted, the Logical Block Address field in the Read Capacity Data is set to
23053Fh.
If a disc which is not a DVD-RAM/+RW and has no Complete Session is mounted, Logical Block Address
field in the Read Capacity Data is set to zero.
When a CD-R/RW disc is mounted, if it is recorded by Track-at-once, the Logical Block Address field in the
Read Capacity Data is set to the LBA immediately behind of the outermost Lead-out, so 2 Run-out blocks
will be encountered.
4.18 READ DISC INFORMATION Command
For +R/+R DL media, the Last Session Lead-in Start Address is the LBA of where the next Intro shall be
recoded. If no session exists on the disc, then the value returned is 00000000h. If the disc has complete
status, then the value returned is FFFFFFFFh.
For +R media, the Last Possible Lead-out Start Address is the LBA found in the ADIP of the disc’s lead-in.
If the disc has complete status, then the value returned is FFFFFFFFh.
For +R DL media, the Last Possible Lead-out Start Address is set as follows.
1) In case of the disc which has no complete status, it is set to the following value.
The value = ( L0 Data Zone Capacity + 1 – 30000h ) x 2 – Extended Partial Lead-out Size
As for the L0 Data Zone Capacity,
if it has not been changed from the default value, it is set to the Last Possible Physical Sector of the Data
Zone on Layer 0 in ADIP,
and if it has been changed from the default value, it is set to the Actual last PSN of Data Zone on Layer 0
in TOC.
As for the Extended Partial Lead-out Size,
if the disc has an Extended Partial Lead-out, it is 30000h,
and if the disc has no Extended Partial Lead-out, it is 0.
2) In case of the disc which has a complete status, it is set to FFFFFFFFh.
LBA found in the ADIP of the disc’s lead-in.
the LBA found in the ADIP of the disc’s lead-in. If the disc has complete status, then the value returned is
FFFFFFFFh.
The OPC table is not supported for +R/+RW/+R DL media.
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