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
BenQ DW1620
We took our first look at the BenQ 16X drive just a few weeks ago. Our second look at the DW1620 uses the same firmware, although we were able to get some better media.| BenQ DW1620 16x DVD-/+RW Drive | |
| Interface | PATA |
| CD Write Speed | 40X, 32X, 24X CAV 16X, 8X, 4X CLV |
| CD Rewrite Speed | 24X ZCLV 16X, 10X, 4X CLV |
| CD Read Speed | 40X MAX CAV |
| DVD-R Write Speed | 16X, 12X, 8X CAV 4X, 2X, 1X |
| DVD-RW Rewrite Speed | 4X, 2X, 1X CLV |
| DVD+R Write Speed | 16X, 12X, 8X CAV 4X, 2.4X |
| DVD+RW Rewrite Speed | 4X, 2.4X CLV |
| DVD+DL Write Speed | 2.4X CLV |
| DVD Read Speed | 16X MAX CAV |
| Supported Modes | DAO / DAO-RAW 16 & 96 TAO SAO / RAW SAO, RAW SAO 16 & 96 Packet Write Multi-Session |
| Supported Formats | DVD+R (DAO, incremental, seq) DVD+RW (random) DVD-R (DAO, incremental, seq) DVD-RW (restricted overwrite) CD-R, CD-RW, CD-ROM, CD-DA, Mixed Mode, CD Extra Photo CD, CD Text, Bootable CD, UDF |
| Access Time | CD: 120ms DVD: 120ms |
| Buffer | 2MB |
Our first test burns with the DW1620 made us a bit nervous. The drive seemed to jump quite a bit during the writing process and we didn't hesitate to contact BenQ about it. They, in turn, informed us of their "Write right technologies" and reassured us that this behavior was normal for the drive. Their "Write right technologies" are a combination of features including Walking Optimal Power Control II (WOPC II), which adjusts the power of the laser during the burning process to ensure a quality burn.
One cause of "errored" burns is a warped area on the surface of the disc. For a drive to optimally write to media, the laser must be at a 90 degree angle to the surface of the media, which is where BenQ's tilt control feature comes into play. By scanning the physical surface of the warped media and tilting the laser, the drive can both read and write to warped media where other drives would produce errors. The Block Error Rate Optimal Writing Control (BLER OPC) helps the burner perform better at the end of the disc, since that is where the most errors can occur due to warped media surfaces.
Another feature that is said to help the DW1620 read and write to media much more efficiently than other drives is its sliding cone, which helps support the media when clamped in the drive and provides for quicker and more efficient auto-centering of the media on the drive's turntable. Features like these are not advertised on most all of the other drives but they are still successful at reading and writing. We will see if these technologies actually help the DW1620 when we perform our benchmarks.
Click to enlarge.
The DW1620 is based on the Philips Nexperia PNX7860E chipset, which works in conjunction with the TZA1047 analog processor to facilitate 16X DVD-/+R writing speeds as well as DVD+R DL writing capabilities.
A scan of the DW1620's label:
Click to enlarge.
Feel free to download the performance graphs for the DW1620 here.
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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.