Write Quality

In our last few DVD and CD recordable roundups, we have not taken the proper time to analyze read and write errors. For this section of the review, we give many thanks to our friends at cdfreaks.com for their insight and guidance with the KProbe error analysis tool. We used version 1.1.29 for this review. A disc written from each burner is loaded into our LiteOn LWD-851S drive and then run through KProbe. Since we are using the same DVD reader for all six probes, the errors on the disc should only represent errors generated by the write process. Lower averages are better.

We used one DVD+R (MCC 003) and one DVD-R (MCC 02GR20) for each burn test. Both discs were burned at 8X. Our KProbe analysis was run at 4X read.

AOpen DDW8800 MCC 003



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AOpen DDW8800 MCC 02GR20



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On both media tests, AOpen had an unusual imperfection at 2/3 through each disc. Fortunately, both discs had very low PO error averages, lower than most of our other drives.

ASUS DRW-0802P MCC 003



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ASUS DRW-0802P MCC 02GR20



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Gigabyte GO-W0808A MCC 003



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Gigabyte GO-W0808A MCC 02GR20



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From the two burn modes, Gigabyte's GO-W0808A pulled the lowest PO averages. On DVD-R media, the GO-W0808A had fairly high PI errors, but at the same time, we had very low PO errors. We have seen this as a trend in most drives based on the MT1818E chipset.

NuTech DDW-082 MCC 003


NuTech DDW-082 MCC 02GR20


Our PO errors are incredible considering the almost laughable benchmarks on the original B364 firmware. Drives based on the MT1818E might produce better results, but considering the difference in price between the Gigabyte GO-W0808A and the NuTech DDW-082, we have to give NuTech a respectable nod here.

Sony DRU-530A MCC 003



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Sony DRU-530A MCC 02GR20



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Sony had real troubles writing 8X DVD-R media. Recall our DVD-R write tests that found the DRU-530A extremely touchy on CPU usage. This may have much to do with the fact that the DRU-530A was originally released as a 4X burner with firmware upgrades to an 8X drive.

Toshiba SD-R5272 MCC 003


Toshiba SD-R5272 02GR20


Bitsetting and Calibration Conclusions
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  • CrazeeHorse - Wednesday, April 28, 2004 - link

    Kristopher, define what you mean by performance. If you mean burn speed, of course it will be similar in different drives that use the same chipset, as their burn speeds are defined by the chipset! However, if you take a wider view,IMO, performance also refers to the burn strategies,media compatibility, media preferences.. all of which can vary from drive to drive, even if they are based on the same chipset. Case in point.. Pioneer 107 and NEC 2500A use the same co-developed chipset. However, NEC allows burning of certain 4X +R media (eg. RicohJPNR01) at 6X, while Pioneer limits them to 4X in their official firmware. NEC's drives have been reported to have problems with some batches of RitekG04 -R media, while Pioneer's drive seems to burn them without any issues.
    So I reiterate.. performance should cover a whole lot of other parameters,besides the ones defined by the chipset.

    Oh,Ian, this is bhairavp from CDRLabs.
  • KristopherKubicki - Wednesday, April 28, 2004 - link

    Its OK. The similarities i claimed though were in performance, not features. The operative word is similar also. So yes, in some instances it would be like saying motherboard and and motherboard b perform similarly because they have the same chipset.

    When it comes down to it, if the Memorex, ASUS and Pioneer drives are all very similar (well actually identical), wouldnt you just want the cheapest?

    Kristopher

  • Ian@CDRlabs - Wednesday, April 28, 2004 - link

    Sorry Kristopher, I didn't get your email. Send it again.

    Just to be nitpicky, there are differences between the 2500A and DDW8800, at least cosmetic. The AOpen is missing a head phone jack. The MSI and Sony drives also have their differences. In particular, the Sony is lacking HD-Burn support.

    While those are good examples of companies using the same OEM, I wouldn't say that the Gigabyte (OEM BTC?) performs like the Lite-On 812S just because they have the same chipset. That's like saying this and this motherboard perform the same because they have the same Intel chipset. You Anandtech guys should be able to relate to that.
  • arswihart - Wednesday, April 28, 2004 - link

    Can somebody tell me what bit setting is and why I should care about it? Thanks
  • KristopherKubicki - Wednesday, April 28, 2004 - link

    Ian i sent you an email the other day and you never responded ;)

    There is 0 difference between the NEC2500A and the AOpen DDW8800. Same with the MSI and Sony, and the ASUS and Pioneer. They just use the same OEM so all the components are identical. Manufacturers get really upset when you say stuff like that, but its the truth.

    Kristopher
  • Ian@CDRlabs - Wednesday, April 28, 2004 - link

    You might want to try KProbe2. It now has separate PI/PO settings.

    I was a little surprised by the "would expect similar performance" comments. While some of drives use the same chipset, there are a lot of other differences (Ex: firmware, pickups, etc) that effect performance.

    Also, when are you going to start including writing times to go along with the average writing speeds? IMO, this isn't the way to show which drive is "fastest".
  • KristopherKubicki - Wednesday, April 28, 2004 - link

    #6: I heard otherwise about using the DDW-061 to DDW-081 utility on the DDW-082 and bumping your 8X burns to 10X. I havent tried it though thats something i will look at after finals maybe.

    Kristopher
  • Booty - Wednesday, April 28, 2004 - link

    'didja *read* the article??'

    Nope, sure didn't... I skip through parts of most AT articles because they either get too wordy or I just don't have time to read them thoroughly. In those cases, I skip to the conclusion for a summary. My bad.
  • CrazeeHorse - Wednesday, April 28, 2004 - link

    Number 2 : You can download the B372 firmware from www.rpc1.org

    Number 4 : Nopes.. you're outta luck.

    Mr Kubicki.. Why didn't you test KProbe @ 4X/8ECC as is being used @ CDFreaks and CDRLabs? The original scanning PI/PO specs call for 1X/1ECC scanning, so Max/1ECC is not going to give you correct results.

    ALso, there is NO hack for making the Nu081 burn at 10X, and their bitsetting utility is perfect. The disc is recognised as DVD-ROM by all the DVDROM drives I've tried, so it seems to work just fine;)
  • l3ored - Wednesday, April 28, 2004 - link

    the nutech and toshiba error charts dont come up

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