Sony DW-U12A DVD Writer

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What is the DVD Write speeds? CAV, CLV, PCAV, ZCLV. Read our DVD Writer colum explanation.

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Sony DW-U12A


OEM:
Sony
Chipset:TI/Sony
24xCDR ZCLV
10xCDRW CLV
4xDVD-R CLV
2xDVD-RW CLV
DVD-RDL
4xDVD+R CLV
2.4xDVD+RW CLV
DVD+RDL
DVD-RAM
BD-R
BD-RE
BD-R DL
BD-RE DL
HDDVD-R
HDDVD-RW
HDDVD-RDL
HDDVD-RWDL
HDDVD-RAM
32xCD
8xDVD
BDROM
HDDVD
EIDE, 8MB
More info
$150 5.5/10
2 votes
Read 3
comments

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DVD Media comments for this DVD Writer (click on the link to read the comments):
1 Maxell 16xDVD+R (RITEK...F16) comments, 0 good, 1 mixed, 0 poor.
2 Memorex 8xDVD-R (CMC MAG. AE1) comments, 0 good, 0 mixed, 2 poor.
1 Memorex 4xDVD-R (MBI 01RG20) comments, 1 good, 0 mixed, 0 poor.
1 Memorex 8xDVD-R (RITEKG05....) comments, 0 good, 0 mixed, 1 poor.
1 Verbatim 16xDVD-R (MCC 03RG20) comments, 0 good, 0 mixed, 1 poor.
Post your DVD Media comments here
Comments
3 comments, Showing 1 to 3 comments
 - 

1 1/2 years old and now the DVD read/record function is dead. Still reads CDs.
Inserting a DVD freezes the computer after initial read.


Comments posted by Mike from United States, October 29, 2004. Rated this writer 1 of 10.





I have had this writer in my Sony Vaio for just over a year now and it has performed perfectly. I have used all kinds of different media with it, both brand name and generic, and only the rare one has a power calibration error. All in all a great writer.


Comments posted by gusll from United States, June 18, 2004. Rated this writer 10 of 10.





ITS CRAP! i have this exact on. one day it just craped out on me and stop reading/writing to all dvds. so basicly now its just cdrw. save your money and get some that will work.


Comments posted by rojaz from United States, May 11, 2004. Rated this writer No rating.




3 comments, Showing 1 to 3 comments
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1 DVD Writer hits, Showing 1 to 1 DVD Writers
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Column Explanation:

Click on this for more technical information.

New comments= New comments since your last visit.
New Writer = New DVD Writer since your last vist.

OEM
Original Equipment Manufacturer.


Chipset

The manufacturer of the main chipset the DVD writer/recorder is based on.


Write support / Read support
DVD-R
= Works
DVD-R = Is not supported
DVD-R? = Not tested


Single Layer(4.7GB) write speeds
1x (CLV) = about 58 minutes
2x (CLV) = about 29 minutes
2.4x (CLV) = about 24 minutes
4x (CLV) = about 14.5 minutes
6x (CLV/ZCLV) = about 10-12 minutes
8x (PCAV/ZCLV) = about 8-10 minutes
12x (PCAV/ZCLV) = about 6.5-7.5 minutes
16x (CAV/ZCLV) = about 6-7 minutes

Dual/Double Layer(8.5GB) write speeds
1x CLV = about 105 minutes
2.4x CLV = about 44 minutes
4x CLV = about 27 minutes

Single Layer (4.7GB) read speeds
1x read speed is 1.321MB/s = ~56 minutes
6x CAV (avg. ~4x) read speed is max 7.93MB/s = ~14 minutes
8x CAV (avg. ~6x) read speed is max 10.57MB/s = ~10 minutes
12x CAV (avg. ~8x) read speed is max 15.85MB/s = ~7 minutes
16x CAV (avg. ~12x) read speed is max 21.13MB/s = ~5 minutes


DVD Write types
CAV = Constant Angular Velocity, the DVD is written at a constantly increasing speed.
CLV = Constant Linear Velocity, the DVD is written at a constant speed.
ZCLV = Zone Constant Linear Velocity, the DVD is divided into zones. After each zone the write speed is increased.
PCAV = Partial Constant Angular Velocity, the DVD is being written at an increasing speed until a certain speed. After this speed it will not increase anymore.


Connection
Desktop = Standalone desktop DVD Recorder
EIDE = Computer DVD Writer with EIDE/IDE connection
SCSI = Computer DVD Writer with SCSI connection
USB = Computer desktop DVD Writer with USB 2.0 or/and 1.1 connection
FireWire = Computer desktop DVD Writer with IEEE 1394/FireWire/i.Link connection (some standalone desktop dvd recorder supports this also but then it is usually to connect your DV camera to the recorder)


Rating
The first rating is based on a weighted rank (the true Bayesian), it requires at least 5 votes to get a weighted rating.
The second rating between the ( ) is a normal average rating.


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