My NEC 3500AG will only burn DVD @ 2x?!


I have a NEC 3500AG and I’m trying to copy data DVD’s but it will only ever burn at a max 2x. I have updated the firmware to 2.19 and tried with a number of different make of disc’s but still the same slow speed. I have also tried a number of different burning software (I normally use either Nero or Alcohol 120) but to no prevail!

Advise please

@ dupfold,

Welcome to the CD Freaks Forum.

Perchance can you provide the Manufacture ID and Media Code of blank DVD media? Suggest using a utility software program similar to DVDInfo ( to acquire the Manufacture ID and Media Code of blank DVD media.

Are you sure that the blank DVD Media is actually rated at a burning speed more than 2 speed?

Best Regards,

defo 8x speed media and as I said I’ve tried a number of different makes so I don’t believe the media is the problem.

Heres tho’s details as requested…

   Media Information                            

Region information N/A not a DVD-VIDEO
Media code/Manufacturer ID MCC 02RG20
Format Capacity Blank Disc
Free Blocks 412352512
Free Capacity 4.38GB(4.71GB)
Book Type DVD-R
Media Type DVD-R
Manufacturer Rated Speed 8.0x 11080KBps
Available Write Descriptor CLV 12.0x 16620KBps
Available Write Descriptor CLV 8.0x 11080KBps
Available Write Descriptor CLV 6.0x 8310KBps
Available Write Descriptor CLV 4.0x 5540KBps
Available Write Descriptor CLV 2.0x 2770KBps
Write Strategy Speed 4.0x 5540KBps
2x Speed OPC beta 09
2x Speed OPC power 0D
2x Write Strategy field 1 13 87 78 80
2x Write Strategy field 2 88 80 00 00 00 00
4x Speed OPC beta 05
4x Speed OPC power 15
4x Write Strategy field 1 0D 10 0B 0A
4x Write Strategy field 2 98 08 0F 0B
4x Write Strategy field 3 80 00 00 00
4x Speed OPC beta multi-pulse 07
4x Speed OPC power multi-pulse 19
4x Write Strategy field 4 15 A7 88 75
4x Write Strategy field 5 99 BC AA A2 20 22
4x Write Strategy field 6 00 00 D0 00 00
Data area starting sector 30000h
Linear Density 0.267um/bit
Track Density 0.74um/track
Number of Layers 1

                       Complete Media Code                           

00000000 00 AA 00 00 01 40 C1 FD 9E D8 52 00 02 85 0D 10 …@…R…
00000010 88 9A 80 00 03 4D 43 43 20 30 32 00 04 52 47 32 …MCC 02…RG2
00000020 30 20 20 00 05 88 80 00 00 00 02 00 06 09 0D 13 0 …

Enable DMA mode, that’s all.

where do I enable the DMA mode please?

@ dupfold,

Suggest viewing the below Forum Posting and note Forum Member ireland’s (posting #4) comments concerning setting DMA.

Best Regards,

ok done that but DMA was already selected and device manager says the DVD drive is using DMA Ultra 2 but still no change in my burning speed

Check DMA for the harddisk too.

I have SATA hd

I’ve been watching the burning process and when it starts, its burning at 6.0x but then drops to 2.0x after maybe 15 seconds or so.

Apart from DMA (which checks out fine) what else could it be? I really need to get this up to speed.

My Maxtor SATA disk use DMA 5. Intel chipset.

Do you have reader and burner at separate ide channels.

Do you copy “on the fly”.

yes, two DVD-RW on two separate IDA channels, both master. Yes, copy on the fly and the reader drive reads at 6.0x so I understand I can only copy up to 6.0x but I still can’t even reach that.

What’s the speed of the DVD-RW. My guess 2x

the other DVD-RW has a burn speed of 2x but this is irrelevant as I’m using this as a reader and using the NEC 3500 as the burner.

What’s the actually burnspeed off the DVD-RW you will burn at with the NEC 3500A.

Use DVDIdentifier to get supported burnspeed.

ok just recorded direct from H/D and the record speed varied from 6.0x (even tho the media has a max speed of 8x) right down to 1.0x and averged 4.0x. Why is the speed so varied even recording from hd, surely that should be burning at a stable speed.

Post result.

Upgrade firmware to 2.1A

Already tried new firmware 2.19. Where can I get firmware 2.1A

Here are those details as requested…

Unique Disc Identifier : [DVD-R:MCC 02RG20 ]

Disc & Book Type : [DVD-R] - [DVD-R]
Manufacturer Name : [Mitsubishi Chemical Corp.]
Manufacturer ID : [MCC 02RG20 ]
Blank Disc Capacity : [2,298,496 Sectors = 4.71 GB (4.38 GiB)]

[ DVD Identifier - ]

** INFO : Drive = _NEC DVD_RW ND-3500AG [FW 2.58]
** INFO : Write Capabilities = DVD+R DVD+R-DL DVD+RW
** INFO : Write Capabilities = DVD-R DVD-RW
** INFO : Disc = [DVD-R:MCC 02RG20 ]
** INFO : Reference Speed : 1x DVD = 1385 kBps
** INFO : An Writeable Disc Is Recommended For Accurate Results
** INFO : Write Speeds (Supported By This Drive On This Disc) Listed Below

** INFO : GET PERFORMANCE Write Speed Descriptor(s)
Descriptor #1 = 16620 kBps (12.00x) - [CLV/Non-Pure CAV]
Descriptor #2 = 11080 kBps ( 8.00x) - [CLV/Non-Pure CAV]
Descriptor #3 = 8310 kBps ( 6.00x) - [CLV/Non-Pure CAV]
Descriptor #4 = 5540 kBps ( 4.00x) - [CLV/Non-Pure CAV]
Descriptor #5 = 2770 kBps ( 2.00x) - [CLV/Non-Pure CAV]

** INFO : MODE SENSE Write Speed Descriptor(s) [Legacy Command]
** WARNING : MODE SENSE Is Obsolete And Not Always Properly Supported
Descriptor #1 = 8467 kBps ( 6.00x) - [CLV/Non-Pure CAV]
Descriptor #2 = 7056 kBps ( 5.09x) - [CLV/Non-Pure CAV]
Descriptor #3 = 5645 kBps ( 4.00x) - [CLV/Non-Pure CAV]
Descriptor #4 = 4234 kBps ( 3.06x) - [CLV/Non-Pure CAV]
Descriptor #5 = 2822 kBps ( 2.00x) - [CLV/Non-Pure CAV]
Descriptor #6 = 1411 kBps ( 1.00x) - [CLV/Non-Pure CAV]

At :slight_smile: Take the modified