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BDR-203/BDC-203 Command Reference Manual Version 0.90
Page 37
4.19 REQUEST SENSE Command
The drive returns the 22 bytes of Sense Data.
When Sense Key, Additional Sense Code and Additional Sense Code Qualifier field is set to 2/3A/00 MEDIUM NOT PRESENT
or 2/04/01 LOGICAL UNIT IS IN PROCESS OF BECOMING READY, the Loading information is set to Byte 21 in the Sense
Data as following.
Table 36 – Loading Status
Byte 21 Loading Status
00h Tray Open
01h Loading
02h Unloading
03h Tray Close and no media
04h Reserved
05h Tray Close and Setup
4.20 SET CD SPEED Command
The drive can not specify the reading speed by any Packet command. The setting of Logical Unit Read Speed field is ignored.
The reading speed is determined by the drive.
This command changes the writing speed for CD-R/RW media. It does not effect to the writing speed for DVD-R/-RW/RAM ,
+R/+RW/+R DL and BD-R/RE media.
The available writing speed may be restricted by the drive when the characteristic of media is not suitable for the speed.
Table 37 – Parameters to set Writing speed for CD-R/RW
Logical Unit
Writing Speed
CD-R Writing
Speed
CD-RW Writing
Speed
DVD-R/-RW and +R/+RW
Writing Speed
BD-R/RE
Writing Speed
0000h – 06E2h 4x CLV 4x CLV
06E3h – 0B05h 10x CLV 10x CLV
0B06h – 1088h 16x ZCLV 16x CLV
1089h – 160Bh 24x ZCLV 24x ZCLV
160Ch – FFFFh 32x ZCLV 32x ZCLV
Remains previous setting Remains previous setting
4.21 SET STREAMING Command
4.21.1 Reading Speed
The Drive can not specify the reading speed by any Packet command.
The reading speed may be automatically reduced by the drive in order to retry to read a block which has not been corrected
errors.
Table 38 – Available Reading speed for each media
Media Reading Speed
CD-DA/R/RW (play audio) 9.3x CAV - 4x CLV
CD-ROM/R/RW (read mode2form2) 9.3x CAV - 4x CLV
CD-DA/ROM (other operations) 40x CAV – 4x CLV
CD-R (other operations) 32x CAV – 4x CLV
CD-RW (other operation) 24x CAV – 4x CLV
DVD-ROM Single Layer 16x CAV – 1x CLV
DVD-ROM Dual Layer 12x CAV - 1x CLV
DVD-R 16x CAV – 1x CLV
DVD-R DL 12x CAV – 1x CLV
DVD-RW 12x CAV – 1x CLV
DVD-RAM 5x ZCLV – 2x CLV
+R 16x CAV – 2.4x CLV
+R DL 12x CAV – 2.4x CLV
+RW 12x CAV – 2.4x CLV
BD-ROM SL/DL、BD-R/RE SL
8x CAV – 2x CLV
BD-R/RE DL 6x CAV - 2x CLV
After writing, the reading speed is change to same speed of writing speed.
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