Panasonic UJ-825 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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CDR, DVDR, BDR, HDDVDR
|Slim EIDE, Slot-in, 2MB
| DVD Media
comments for this DVD Writer (click on the link to
read the comments):
1 Bulkpaq 8xDVD-R (ProdiscS04) comments, 1 good, 0 mixed, 0 poor.
1 Infiniti 4xDVD-R (SONY04D1....) comments, 1 good, 0 mixed, 0 poor.
1 MDA Technology 4xDVD-R (AN31........) comments, 1 good, 0 mixed, 0 poor.
1 Philips 8xDVD-R (FUJIFILM03..) comments, 1 good, 0 mixed, 0 poor.
1 Sonix 4xDVD-R (AN32........) comments, 0 good, 0 mixed, 1 poor.
2 TDK 8xDVD-R (TTG02.......) comments, 2 good, 0 mixed, 0 poor.
2 Verbatim 16xDVD-R (MCC 03RG20) comments, 1 good, 1 mixed, 0 poor.
Post your DVD Media comments here
i need a new firmware panasonic uj 825.
i have the VS0A.
Comments posted by pippo from Germany, July 04, 2006. Rated this writer No rating.
Comes as superdrive on a 12" G4 Powerbook 1.33GHz , good for general purpose, but a bit behind today´s standards, treats 8x media as 2x, recording reliability is highly media dependant, records 4x with original Apple media and Verbatim 4x DVD-R (records DVD+R on some brands only), Tech support from Apple and Matsushita regarding ROM updates is nonexisting.....
Upgrade rationally possible: Change the whole laptop, drive upgrades, especially on this laptops are too expensive.
Comments posted by Alejandro Crespo S. from Mexico, September 13, 2005. Rated this writer 8 of 10.
Good writer but it definitely does NOT support correctly all 8x speed DVD-R media because it writes them only at 2X instead of 4X since its 4x speed drive(for DVD-R media only). It's definately a firmware issue. But don't e-mail or call to any Matshita/Panasonic support for new firmware. I've been doing this since 2004. They all ignore this problem. They advice to use 4X speed A-brand discs like TDK Verbatim but all A-brand media present on the market are 1x-8x now.
Comments posted by Ivan Gurzhyy from Ukraine, September 03, 2005. Rated this writer 7 of 10.
It is ok. It came in my new iMac G5. It would not burn 4x ProDisc's at 4x, it would only do burn them at 2x. This was using toast, even getting info on the discs in toast it said they were only 2x compatible. Ritek G04 media has been working well for me though.
Comments posted by Jon from United States, November 07, 2004. Rated this writer 8 of 10.
I have this drive on my Acer Ferrari 3200 Laptop and the only compatibility problem i'm having is when using Nero 6 to burn DVD+R it give th error after it finish burning that it cannot complete the Disc-At-Once process and it leaves the session open, this is fine for data but for DVD movies, they only play on my laptop.
Comments posted by Lazerick from United States, October 20, 2004. Rated this writer 8 of 10.
i bought this drive in the computer show on sunday i had some dvd-r blanks and copied an movie it worked great used an blank cd and made an svcd worked great i did not make much use of it ony problem i had it take a bit longer to reconize an dvd longer than my pioneer 104 but sure does more than my pioneer i got an usb encloser intalled in it an use it as an portiable drive i would rate it 9 out of 10
Comments posted by nick from Canada, October 18, 2004. Rated this writer 9 of 10.
This one is my iMac G5 17" 1.8.
Comments posted by hardus from Netherlands, October 16, 2004. Rated this writer No rating.
This is the 4x Superdrive found in Apple PowerBook G4s in the 1GHz - 1.5GHz range.
Comments posted by Chase from Canada, September 23, 2004. Rated this writer No rating.
| 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.
Original Equipment Manufacturer.
The manufacturer of the main chipset the DVD writer/recorder is based on.
Write support / Read support
DVD-R = Works
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.
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)
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.