BenQ DW1640 -- for DVD+-R *DL* (dual/double layer)

Here are the transfer rate tests for the 5 discs I’ve recorded so far.

This is an .ace archive, rename to dltrt.ace and open it as an .ace file. Without .ace I couldn’t get the set of pictures below 100 KB. :slight_smile:

These discs were recorded both on the 1640 as well as my NEC 3500A; discs 3 and 5 have been recorded on the 3500, the rest on the 1640. The transfer rate was capped at around 9.5x as the drive is on a PCI IDE controller. Disc 3 was read twice, the transfer curve looked a lot better when the maximum speed was set to 8x.

Now these discs are certainly readable at a resonable speed, I’ll likely stick with recording them on my 3500A, despite having a lower recording quality. Regardless of whether or not I have WOPC enabled or disabled, more often than not the BenQ will mess up at the layer break - that is, it will give me an error when attempting to write to layer 2.

The attached picture nec.png gives an idea of the writing quality of the 3500A (firmware 2.1B). (35.5 KB)

If It saves you alot of coasters, going with the NEC is a good Idea. :iagree:

On a side note, it has been known that scanning NEC burns with a BenQ can give false results, ie the burns look worse than they actually are. This is especially true when the discs have high jitter (usually over 12% or so).

If you have access to a Plextor or LiteOn, re-scan the NEC burns and you may be surprised. The burns may actually be of better quality than these scans indicate.

I have a Lite-On 166S DVD-ROM but I don’t think I can get any meaningful results out of it.

The quality scans would not be useful but it would be ok for TRT’s. My 1615 (Sony OEM LiteON DVD-ROM) seems to give results comparable to my LiteOn 165P6S but I haven’t really looked into it further as I have two scanning capable ±RW’s.

The main thing is that these discs suit your purpose.

If either the BenQ or the NEC burns play in standalones if DVD Video, or the data is recoverable if used for backups then you haven’t lost out.

Backing up movies is no problem as the original is always within grasp; but I wouldn’t back up important data to these.

Best to save them for video back-up and give aways to friends/family.

I am actually using these to backup data and I don’t really have much of a problem reading back the contents in either the BenQ or the NEC.
I just realized about 95% of the data on this drive are MP3s. Half of this I likely have another copy of; the other half I downloaded like 2 years ago and haven’t touched since. :stuck_out_tongue:
The other drive has 60,000+ files but 76% of the used space is MP3s.

mcc 003 8X wopc on SB/OS off. I conitnue to be successful with Qsuite full scan . If it says I can burn at 8X I do if not I do 4X, but here is a pretty good 8X

Your “mcc 003 8X” media looks like MKM 001 2.4x media :slight_smile:

oops sorry about that your are right mkm 0001 2.4X. I know there are many opinions regarding Qsuite but for the pasat three months it appears Qsuite has been right on.

any DL burns with the new BSPB firmware?

BenQ DW1640 Retail (May '05, China)
SB K:On / UK:On
Verbatim 8x DVD+R DL - MKM-003 - 5pk Jewel Cased - Singapore
DVD Decrypter - MD5/DVD9
8X in 15:04


I 21:20:14 DVD Decrypter Version started!
I 21:20:14 Microsoft Windows XP Professional (5.1, Build 2600 : Service Pack 2)
I 21:20:14 Initialising SPTI...
I 21:20:14 Searching for SCSI / ATAPI devices...
I 21:20:14 Found 2 DVD-ROMs and 2 DVD±RWs!
I 21:20:23 Operation Started!
I 21:20:23 Source File:_______.MDS
I 21:20:23 Source File Sectors: 4,106,833 (MODE1/2048)
I 21:20:23 Source File Size: 8,410,793,984 bytes
I 21:20:23 Source File Implementation Identifier: Spruce Technologies
I 21:20:23 Destination Device: [1:0:0] BENQ DVD DD DW1640 BSPB (E:) (ATA)
I 21:20:23 Destination Media Type: DVD+R DL (Disc ID: MKM-003-00) (Speeds: 2.4x, 4x, 8x)
I 21:20:23 Destination Media Sectors: 4,173,824
I 21:20:23 Write Mode: DVD
I 21:20:23 Write Type: SAO
I 21:20:23 Write Speed: MAX
I 21:20:23 Link Size: Auto
I 21:20:23 Test Mode: No
I 21:20:23 BURN-Proof: Enabled
I 21:20:23 Optimal L0 Data Zone Capacity: 2,054,976
I 21:20:23 Optimal L0 Data Zone Method: ECC Block Boundary, VOBU Boundary
I 21:20:24 Filling Buffer...
I 21:20:24 Writing LeadIn...
I 21:20:36 Writing Image...
I 21:34:47 Synchronising Cache...
I 21:34:48 Closing Track...
I 21:34:52 Finalising Disc...
I 21:35:28 Operation Successfully Completed! - Duration: 00:15:04
I 21:35:28 Average Write Rate: 9,663 KB/s (7.0x) - Maximum Write Rate: 11,163 KB/s (8.1x)

Time to re-kindle an old thread…

My 1st ever DL burn with MKM001 at 4x. Whaddya think?

Pretty good, I’d say. :clap:

Godedd, this is a great overall performance from MKM001, with the PIF total of 1042 being first-rate (I rarely see DL burns even close to this low).

The doubling of PIE level after the layer break is typical with any DL burn I’ve seen, along with more frequent PIFs after that point, too. Out of all the DL burns I’ve seen, the MKM001 is usually the most consistent performer, so if I were to go DL, I’d only use MKM.

i’m using mitsubishi 2.4x dvd+r dl media - mkm001 media code and it’s made in singapore – in all likelihood it’s identical to the verbatims

i burnt at 2.4x and scanned at 4x (8x scans were a disaster, 50+ PIFs!!), even at 4x read my scan quality sucks big time; the first layer was ok, hence i rescanned again starting close to the layer break to give you a general idea of how things went from sort of ok to shitty.

can it be the firmware? i’m still stuck on BSLB as i generally burn a lot of dvd+r’s @ 8x and bslb seems to give me the best results for that.

OUCH!! :eek: :eek: I suggest you try BSRB as I’m sure DL media writing strategies have been improved since BSLB. There’s no harm in trying, you can always go back to BSLB if it makes no difference. :wink:

BTW… Scanning at 8x is the standard for Benq drives.

upgraded to BSRB and burnt a MKM001 at 4X. Scan is at 8x, first layer seemed to have been recorded properly - at layer change all hell breaks loose…arghhhhh!

Vingie, did you flash with BSRB twice? At this point, that might be something that could help, or at least be something where you have nothing to lose. I suggest this because when I first upgraded from BSLB to BSPB, I got some bad read transfer tests, and only when I flashed to BSPB TWICE did that solve the problem. Another user suggested it to me, a seasoned CDFreak that does it often, and when I did that, no more problem. Also, check your “Learned media” table under QSuite: if you flash twice to BSRB (flash, reboot, flash again, reboot) and you still have learned media in the 6 boxes, press “clear EEPROM” to clear it, then try another burn.

Of course, flash twice, rebooting after each flash, then check the table and clear it if there’s any media there. Reboot once more, then check the table, and it should be clear. Then try another burn. HTH

Can the software make or break a dual layer burn? my first MKM001 +R DL disc was burnt at 2.4x/BSLB fw/Nero 7.0.0 and it gave a workable scan at 4x (88%).

The second MKM001 was burnt at 4x/BSRB/Clonecd 5.291 and it gave a very decent scan of 94% at 4x read speed (horrible at 8x scan speed as you can see from the image above)

Is there any particular software to use for burning with DL discs and Benq 1640 - should I try imgburn?

I so rarely get decent burns with Nero that I almost exclusively burn with Imgburn, regardless of the media but especially with DL.

However, before I burn a DL I always run it through QScan first just to get a general idea of how well that particular disc might burn and at what speed. Then I set Imgburn to the speed that scanned the best.

I’ve found that Verbs vary from spindle to spindle (I buy the ten packs). Some burn perfectly well at 8x and others limp along at 2.4x so I always scan the disc first…

Good luck, YMMV etc., etc.

Verbatim 2.4x DVD+R DL OS=off SB=off WOPC=on Burned at 8x