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3. Data write processing
(1) Write speed
i. DVD-R ×1, ×2, ×4(CLV)
ii. CD-R ×4, ×8, ×16, ×20, (CLV)、×20 ~ ×24 (ZCLV) write speed are applicable. (mastering
write)
iii. CD-RW ×4, ×10 , ×12(CLV), write speed are applicable.
Arbitrary speed can be set using the ATAPI command.
(2) Write system
CD-R/RW
Track-at-once
Disc-at-once
Packet write
(variable length/fixed length)
(3) Write data mode
CD-R/RW
MODE 1
MODE 2
MODE 2 / Form 1
MODE 2 / Form 2
MODE 2 / Combination of Form
1 and Form 2 (Note 2-1)
CD-DA (Note 2-2)
ISRC
Media catalogue No.
CD-TEXT
(4) Optimum write function
The strategy and write laser power are set automatically according to the characteristics of
the disc. This is performed when the disc is replaced or the CLV speed is changed.
In addition, the write condition is checked during writing the data, and the running OPC
function which sets the optimum laser power, is performed.
(5) BURN-Proof
Seamless Linking is defined for the action and the signal quality to stop and start recording
in the one EFM recording.
(Note 2-1) This is applicable only within the approved range of the CD-ROM and CD-ROM XA.
(Note 2-2) Host computer makes and transfers the RAW data which includes pre-gap in the
case of the disc-at-once writing. At this time, the track management information
needs to provide instructions to transfer the start and end address of the actual audio
data portion.
Document Name
Function Description
SANYO Electric Co., Ltd.
DVD-R
Disc-at-once
Incremental write
DVD-R
2048Byte only
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