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3. Data write processing
(1) Write speed
i. DVD-R
ii. DVD-RW
iii. CD-R ×4, ×8, ×12, ×16,(CLV) ×16 ~ ×48 (ZCLV) write speed are applicable. ( mastering write)
iv. CD-RW ×4, ×10, ×12 (CLV), ×24(CAV) write speed are applicable.
v. HD-BURN x6,x12x,x18,x24 ( on a conversion to CD speed)
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
MODE 1
MODE 2
MODE 2 / Form 1
MODE 2 / Form 2
MODE 2 / Combination of Form1
and Form 2 (Note 2-1)
(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
BURN-Proof is a proprietary technology, which helps the users to protect from Buffer Under
Run Error.
(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
×2, ×4 (CLV), (×8)(PCAV) DVD+R
×2, ×4(CLV)
DVD-RW
Disc-at-once
Incremental
write
CD-R/RW
CD-DA (Note 2-2)
ISRC
Media catalogue No.
CD-TEXT
SANYO Electric Co., Ltd.
DVD+RW
DVD-RW
DVD+R
Disc-at-once
Incremental
write
Incremental
write
Restricted
over write
2048Byte only
×2.4, ×4 (CLV),×8(PCAV)
×2.4, ×4 (CLV)
DVD+RW
Random
over write
DVD±R/RW
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