Suggestions to BenQ and/or Philips Engineers

Please fix the write Speeds for DVD-R Media for the BenQ 1620. B7U9 and B7V9 FW often write at 8x when 12x is selected. Maxell RG03, Prodisc F01 and TYG02 are some that are effected. Please see links:
http://club.cdfreaks.com/showpost.php?p=1091758&postcount=1963

http://club.cdfreaks.com/showpost.ph...postcount=1964

If posible decrease spin - up time.
2 seconds would be great.

1ECC scanning please!

Please fix the read-issues plaguing the DW-1640 series. As can be seen from two threads in this forum, many of us are experiencing severe read-problems using stock-firmware where the drive ramps up to 4x-7x, then down to 2.4x-0.6x, and continues to thrash for the remainder of the read.

Just fix the problem. Please.

Also, please fix the read/write issues caused when using a lite-on 52327s drive hooked upto master/slave on the same ide channel.

More info here(read page 1) and here.

As you can see I was able to temporarily fix the problem with some software changes, so surely it can be fixed in firmware.

Thanks.

Don't forget the BenQ 1620 PRO!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

With the 1640 and QSuite Version 2, Would like to have the option of clearing selected media in the EEPROM Clean tool instead of having to clear all.

Ditto

Ditto as well - i'd hate to haveta relearn when I get a new spindle of crap, or say I get discs from friends. Maybe make more learning area if it's technically possible.

I notice this behavor when reading pressed dual layer discs with the BenQ 1640 (see first scan). While this disc is not the perfect disc, I don't think it warrants the whole second layer being read at 8x. See the Liteon 1693S scan below.

Also is it possible to increase the trays eject/load speed. It's terribly slow compared to my other drives, including the BenQ 1620. Maybe a two speed approach like LiteOn uses, where it starts off fast and then slows about half way out or in.

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Last edited by C0deKing; 07-09-2005 at 07:10. Reason: Typo

Agree!

Make standard firmware more compatible with external enclosures.

Hey Benq: Your having some serious problems with you 1640. When someone has to RMA a drive 3 or 4 times that should be telling you something is wrong. A 1640 was on my list as the next hot drive to get but after reading the nitemares that people are having with them I dont see me buying one anytime soon. Even at a great price I just do not want to play post office tag with a place like Newegg in the hopes that I get one that works and keeps working. You were on a good roll for a while but that roll seems to be ending.

Unlock! Unlock! Write Speeds un 1625.

Support for Ritek 4X DVD-R DL (RITEKP01).

My problem list for the DW1620 B7W9:

1. CMC AM3 16x media will only burn at 8x, nice quality improvement with B7W9 over B7V9 but the speed still stinks compared to my other burners
2. CD-Speed sometimes locks the media into the drive after extended scanning, cannot be unlocked without rebooting the PC. When I press the eject button, the light goes from green to red, and will not release the media. Both of my DW1620's do this
3. I recently got some Osidisk DVD-R 8x media which uses the TYG02 media code. Burns fine on all my other burners, and my NEC 3500A 2.1A will even overspeed and burn fine at 12x. Of the 2 discs I've tried, the first one (16x burn) jammed for about 2 min at the first WOPC check, then stepped down to 4x and the burn quality went nasty but it did complete. I tried burn the next one at 12x, which did the same thing but never got through the WOPC check and failed completely. None of my other 7 16x burners had any problems like this, and I did not get this kind of strange behaviour with my Optodisc DVD-R 8x printable media which uses the TYG02 code as well. Later today I will post comparative scans of the same media burned in the first case and another burned on my 4163G A105 at 8x.

Ok, more problems to fix and the burn samples referenced in the above post:

Burn results previously mentioned:
- BenQ WOPC issue on Osidisk DVD-R 8x:
http://club.cdfreaks.com/showthread.php?t=149962
- Comparative burn result with Osidisk media on 4163B:
http://club.cdfreaks.com/showthread.php?t=147150

4. often after writing a disc with Nero CD-Speed, if you click on the Disc Quality tab, the media in the drive is not recognized. If you select another burner, then reselect the BenQ or just eject-reload the same disc, it is recognized fine. I suppose this could be a bug in CD-Speed too but it has not happened until recently so this may be a B7W9 issue

5. GSC003 code media burns with very bad results (PIF index ~4) and POF errors, even with B7W9. In previous firmwares the PIE rate was about quadruple what it is now, but there were far less POF's. The same media burns with spectacular quality on drives like my 4163B, ND-3500A, DVR-109, PX-716A, pretty much eveything else. Two of the burns with the 4163B had less than 50 total PIF's on a complete disc, so it is obviously not the media.
GSC003 media burned on the DW1620 B7W9 and 4163B for comparison can be found in the following thread:
http://club.cdfreaks.com/showthread....6&page=2&pp=25

The DW1620 B7W9 also doesn't handle Infodisc Ultra Speed CD-RW discs (Memorex branded in this case) very well, but this media basically self destructs after the first burn anyway--pure junk. I have also found that Verbatim 32x CD-RW discs burn very badly including C2 errors if you burn at 16x instead of max. which is 24x.

BenQ 1620 - improve RICOHJPND00 (DL) support - I recently upgraded the F/W to B7W9 and still have yet to burn a disk successfully.

PACE (3 coasters and counting...) TREE

I just pickup up my third BenQ, this one a DW1640. Started running some media tests, and I have found that I get very high PIF rates on Ricoh R03 media (Memorex in this case). My result is the worst I've had PIF-wise of 13 test discs. PIE rate is very good though. I tested this media type as the PIF rate was pretty marginal on my DW1620's as well. Nice burn speed at 5:44 though, and jitter almost matches the DW1620 B7W9, which was the lowest of all my tests.

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Last edited by C0deKing; 29-10-2005 at 12:32.

Results aren't very good on Verbatim 24x CD-RW either, jitter is higher than burning Verbatim 32x CD-RW and C1 rates are over 3 times as high. C1 spikes were so high that the quality score was 0. Needs some attention there guys...my DVR-110D burned the same disc after with 1/10 the C1 rate and 5% lower jitter.

support for UDMA-4 in BenQ 1640, I know it can do UDMA-4 then why are u limiting it

Try another disc. Here's a Verbatim 24x CDRW burned @24x on the 1640, having previously been burned on a Plextor PX712a dozens of times. Not too bad for CDR, never mind CDRW.

It almost seems like the drive is "learning" this disc, check out my 3 successive full erases and burns of the media. The fourth one is a full erase and burn of the same disc on an LG 8525B 1.05 that I did earlier today. Obviously the DW1640 is not doing a very good job of burning this disc to what it is capable of.

Same disc full erased and burned on my 8527B 1.02. Wow, what a great CDRW burn...definitely nothing wrong with the media. It's actually the lowest C1 rate on any Nero data disc I have ever tested, including CD-R's (> 200 CD results in my logs).