Fall 2004 DVDR Roundup: Dual Layer and 16X DVD+R
by Anand Shimpi & Virginia Lee on November 1, 2004 12:05 AM EST- Posted in
- Storage
Write Quality Tests MKM 001
Dual layer media follows the same rules as single layer, but there are certain points on the disc where errors are known to occur the most. We have noticed that the part of the disc where the transition from layer to layer happens is where the PO errors have shown up. Our results are as follows:
We didn't have much luck getting dual layer media both to burn on all drives, since the Sony DRU-710A and MSI DR16-B had trouble writing a successful dual layer disc, and if there was success, to be recognized on the Plextor drive. The DVR-108D and DW1620 came out clean with 0 PO errors each with NEC following with 3 PO errors. The SOHW-1633S was another drive we had luck with, but a successful write was the end of it. PO errors on the dual layer media from that drive hit 192 and were all located between the 2GB and 4GB mark where there were also a few million PI errors!
The DVR-108D performed exceptionally well producing on 546 PI errors on the MKM 001 media. NEC followed with 261224 PI errors which held it and the Pioneer unit at the top two spots.
The Q-Tools screenshot of LiteOn's burn shows the majority PI errors between the 2GB and 4GB range.
It's too bad that there were only 4 drives on which we could test write qualities. Hopefully, future firmware releases will fix compatibility issues on the drives that we have tested in order for media to be recognized correctly on a wider range of hardware.
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gtanuel - Monday, November 1, 2004 - link
Just want to add an info about BenQ DW1620 pricing. I bought DW1600 3 days ago at SG$ 98 (that's about US$54-58). After upgrading the BIOS, it's now on DW1620's firmware B7M9. If the physical is the same as DW1620, it's effectively the cheapest 16x among the rest.kernelgui - Monday, November 1, 2004 - link
On page 13 where you published the test results with Ritek G05 media the graph heading indicates DVD-R 8X write speeds, however the smaller print below that indicates DVD+R media. Can you perhaps clarify if this table is based on + or -Thanks,
Fionavar - Monday, November 1, 2004 - link
Thanks for the great review! Just one note of possible mistake - you have the DL R speed of the ND 3500a @ 2.4 when I believe it should be 4x.KristopherKubicki - Monday, November 1, 2004 - link
Maverick215: Testing 8 DVD drives takes more than just a few days. Our roundup was submitted Mid October and posted Nov 1.The zip files are at the bottom of each drive page. Look at the bottom of page 6 for the Benq.
http://www.anandtech.com/storage/showdoc.aspx?i=22...
Kristopher
Maverick215 - Monday, November 1, 2004 - link
KristopherKubicki: Let me see if I got this.You say that you tested the most recent firmware available on the Benq. Your previous review was posted September 29th, 2004. The next firmware released was B7K9, files in that zip are dated 9.27.04 and it was posted to benq's US site 9.29.04 (the same day the initial review was released) So if you "... tested with the newest firmware possible" then either http://images.anandtech.com/reviews/storage/16xosd...
is outdated or you tested the drive for 'this' roundup 'before' the previous review was released. I'm inclined to think the latter is true based on the features of B7K9. Similarly, "(your) second look at the DW1620 uses the same firmware, although (you) were able to get some better media." I assume you got this media prior to 9.29.04 as well...
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Just trying to figure this out for myself here (btw I can't seem to find the .zip files you refer to). I have no vested interest in any of this, just like to see things clearly.
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Back to the firmware issue. B7K9 introduced a great many write strategies changes.
I will pick out the media tested that seems to have changed since before B7K9
Mitsubishi (MCC 03 RG20) DVD-R is now 16x (should put speed about the same as NEC)
Mitsubishi (MCC 003) DVD+R is now 12x (should be about the same as the RITEK test on the BENQ)
Ritek (RITEK R04) DVD+R is a 16x supported media
Mitsubishi (MCC 004) possibly had a write strategy change (uncertain) to make it full 16x; same for (RITEK R03)
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#35+KristopherKubricki
Don't get me wrong I understand you guys can't test the latested of the latest ultra alpha zeta laser tool chain master firmware (yes I made that up as I went) and compile a review/comparison instantly. But I would expect if you are using new material for a new review that you use the latest firmware/software etc that is available at the start of that review/comparison. At the VERY least you could mention that firmware revisions/updates/etc have been made (google is easy to use) and likely improve the results of XYZ. Further mentioning new features have been introduced, such as in B7M9 (released 10.27.04) where high speed (8x) disc quality testing with nero cd/dvd speed has been added (must use latest firmware, with latest software).
I may not expect to see such things on (insert company fanboy website here) but I certainly expect nothing less than what I suggest from "the leading IT source for hardware analysis and industry news"
Bozo Galora - Monday, November 1, 2004 - link
BTW CDfreaks says the 1.01 firmware is out.Bozo Galora - Monday, November 1, 2004 - link
Actually if you look at store pickup it shows in stock (for me) at several places. But no one at those friggin stores ever answers the phone.Going out there right now to see, pick up 3 if they have them.
Thanks for heads up.
Dennis Travis - Monday, November 1, 2004 - link
The Modesto, Calif Best Buy had 5-6 the night I got mine. I was shocked to see it there. I am glad I bought it. My friend has the 712 and never a coaster after at least 500-600 DVD's and hunderds of CDR's. And the DVD's play on anything in my house including a Sony DVD that hates all burned media.Same with the 716a so far.
KristopherKubicki - Monday, November 1, 2004 - link
We will test a PX-716A as soon as we get a sample.Kristopher
Warder45 - Monday, November 1, 2004 - link
Nm they are backordered till the 11th - 17th. I'll have to check my local BB's to see if any of them got it in.