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First Benq 1620 "hiccup"

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First Benq 1620 "hiccup"

Postby jberry on Thu Dec 02, 2004 10:46 am

This is only a small problem....drive is superb..DL and all..amazing.

So what is wrong....well I have some Maxell dvd-RWs 2X speed....if I use the 1620 to burn I do not get the 2x option..I get 1 and 2.4. 6 2.4x burns failed (i.e. they burn but do not play). Now if I try my LG 4120b I get speed options of 1 and 2...burn at 2 and ALL OK.

now this is just a small issue, only reason I am posting is that I am curious as to why the Benq wants to burn at 2.4x (no option for 2x)...makes bad discs....just curious....the 1620 is excellent though
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Postby Bhairav on Thu Dec 02, 2004 10:50 am

Probably don't have the Maxell discs in their firmware media table. Can you do a dump from DVD Identifier (dvdidentifier.cdfreaks.com) and post it here?
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Postby dolphinius_rex on Thu Dec 02, 2004 11:03 am

The BenQ DW1620 doesn't support DVD-RW writing at 2x, only 2.4x. Actually, I never even found any discs that would burn at 1x, but I guess you did. What is the meda code on the discs?
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Postby jberry on Thu Dec 02, 2004 11:09 am

I am at work now....will post later....

I did check when I saw the bad burns....media is TDK (Even though label is Maxell)...but I will post the official look see at the media later.....but it is definately TDK That I know

if it is not in the media table, one would think that the drive would default to 1x "to be safe" these -RWs are about 4 months old
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Postby dolphinius_rex on Thu Dec 02, 2004 2:45 pm

I doubt the media isn't in the firmware... but it's worth sending a note to BenQ about I think.
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Postby dodecahedron on Thu Dec 02, 2004 2:55 pm

DVD-RW at 2.4x ???
this isn't in the specs at all, is it ? :o
2.4x is a DVD+ speed...
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Postby jberry on Thu Dec 02, 2004 4:20 pm

yep....2.4x for Maxell DVD-RWs on the 1620.

I remember dvdinfo pro saying they were TDK discs....but I will post the complete media info when I get home

is 2.4x really a +R thing?

strange that LG would get it right and Benq not...good to have 2 burners though
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Postby dolphinius_rex on Thu Dec 02, 2004 4:21 pm

dodecahedron wrote:DVD-RW at 2.4x ???
this isn't in the specs at all, is it ? :o
2.4x is a DVD+ speed...


BenQ isn't even the first to burn DVD-RWs at 2.4x... i believe BTC released a drive that could do it as well. The difference in burn time is pretty significant, so I'm happy with it :)
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Postby jberry on Thu Dec 02, 2004 4:23 pm

yes...you wouldn't think 2 vs 2.4 would be much.....but it shaves a few mins off...no good for a bad burn though :D
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Postby jberry on Thu Dec 02, 2004 7:34 pm

As Promised (FOR THE LG4120b...see another post for the Benq 1620):

Media Information
Region information N/A not a DVD-VIDEO
Media code/Manufacturer ID TDK502sakuM3
Format Capacity Blank Disc
Free Blocks 411107328
Free Capacity 4.38GB(4.71GB)
Book Type DVD-RW
Media Type DVD-RW
Manufacturer Rated Speed 2.0x 2770KBps
Available Write Descriptor CLV 2.0x 2770KBps
Available Write Descriptor CLV 1.0x 1385KBps
Write Strategy Speed 2.0x 2770KBps
Data area starting sector 30000h
Linear Density 0.267um/bit
Track Density 0.74um/track
Number of Layers 1

Complete Media Code
00000000 00 6A 00 00 01 40 D6 FD 9E D8 21 00 02 0F 05 06 .j...@....!.....
00000010 88 75 0D 00 03 54 44 4B 35 30 32 00 04 73 61 6B .u...TDK502..sak
00000020 75 4D 33 00 05 00 00 00 00 00 00 00 06 0F 0C 04 uM3.............


whahhda think?
Last edited by jberry on Thu Dec 02, 2004 9:16 pm, edited 1 time in total.
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Postby dolphinius_rex on Thu Dec 02, 2004 8:06 pm

Hrm... I'm thinking that scan wasn't done in the BenQ DW1620 :P

Unfortunately, I don't have one of those discs at my place, so I can't try it out myself. Write BenQ a letter to their support section, and ask them why it isn't working. Hopefully they will add better support for it.
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Postby jberry on Thu Dec 02, 2004 9:18 pm

Man I am an idiot!!!!!!! =D>

Here is the scan from the Benq 1620:

Media Information
Region information N/A not a DVD-VIDEO
Media code/Manufacturer ID TDK502sakuM3
Format Capacity Blank Disc
Book Type DVD-RW
Media Type DVD-RW
Manufacturer Rated Speed 2.0x 2770KBps
Available Write Descriptor CLV 2.4x 3324KBps
Write Strategy Speed 2.0x 2770KBps
Data area starting sector 30000h
Linear Density 0.267um/bit
Track Density 0.74um/track
Number of Layers 1

Complete Media Code
00000000 00 6C 00 00 01 40 D6 FD 9E D8 21 00 02 0F 05 06 .l...@....!.....
00000010 88 75 0D 00 03 54 44 4B 35 30 32 00 04 73 61 6B .u...TDK502..sak
00000020 75 4D 33 00 05 00 00 00 00 00 00 00 06 0F 0C 04 uM3.............


well.... :P

Notice how some info is missing in the Benq scan....interesting....

any idea here.

BTW is DOES burn at 1x with the 4120b....take a long time though LOL
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