Liggy's ND-3500AG TEST firmware results and discussion

First test was a ProdiscR03 burned at 12X (DVD-Video file 3.8 gig)

The disc plays on PC and set top DVD player but freezes on the final chapter.
One should remember these are early days for media speed ups on the ND-3500AG, and write strategys will need tuning i think, be prepared for some coasters if you intend to try out this firmware. And above all, remember this is TEST firmware. :wink:

This time a Ritek G05 burned at 16X :eek:
burning this media at 16X was asking to much i think, but i thought i would try it . :slight_smile:

As you can see from the scan, the disc is a coaster :sad:



Ritek G04 (Ridisc printable branded) burned at 8X
A better result, the G05 write strategy used seems a good match, there are quite a few PI/PIF errors nearing the end of the burn but that is to be expected on this media asked to burn at twice it’s rated speed. The disc is very readable though :slight_smile: A pretty good result me thinks :iagree:
EDIT : I may try this one at 6X later :wink:




I wouldn’t go over 6X with that ridisc.

FujiFilm03 Burned at 12X (DVD-Video)

I didn’t expect much from this media as the batch i have hasn’t been great with the stock firmware. Another coaster :sad:

12:00:57 DVD Decrypter Version 3.5.1.0 started!
12:00:57 Microsoft Windows XP Professional (5.1, Build 2600 : Service Pack 2)
12:00:57 Drive K:\ (FAT32) does not support single files > 4 GB
12:00:57 Initialising SPTI...
12:00:57 Searching for SCSI / ATAPI devices...
12:00:57 Found 1 CD-RW, 1 DVD-ROM and 2 DVD±RWs!
12:01:22 Operation Started!
12:01:22 Source File: F:\TEST.MDS
12:01:22 Source File Sectors: 1,893,808 (MODE1/2048)
12:01:22 Source File Size: 3,878,518,784 bytes
12:01:22 Destination Device: [1:0:0] _NEC DVD_RW ND-3500AG 2.17 (G:) (ATA)
12:01:22 Destination Media Type: DVD-R (Disc ID: FUJIFILM03) (Speeds: 2x, 4x, 6x, 8x, 12x, 16x)
12:01:22 Destination Media Sectors: 2,298,496
12:01:22 Write Mode: DVD
12:01:22 Write Speed: 12x
12:01:22 Test Mode: No
12:01:22 BURN-Proof: Enabled
12:01:22 Filling Buffer...
12:01:22 Writing LeadIn...
12:01:57 Writing Image...
12:07:28 Synchronising Cache...
12:07:36 Operation Successfully Completed! - Duration: 00:06:13
12:07:36 Average Write Rate: 11,442 KB/s (8.3x) - Maximum Write Rate: 16,616 KB/s (12.0x)



Ritek G05 once more, this time at 12X




Ritek G04 (Ridisc printable branded) once more, this time at 6X :smiley:

DVD Video 3.8 gig. A superb burn by any standard and a very useful speedup, taking 4 to 5 minutes off the burn time for this media :bigsmile:
I will have no hesitation in burning this media at 6X :wink:
A big thankyou to Liggy for making this possible. :bow:




I’ve burned some sony 047d1 at 12X, 8X and 6X, the 6X is good, the rest is useless, perhaps using the sony 08d1 strategy for 8X?




I don’t think it’s out of the question to burn ritek G04 at 8X, My pioneer 107D can without any errors. Atleast when there a good batch …:wink:

Revision 2 TEST firmware changed strats for ProdiscR03 using R04 strategy.

ProdiscR03 (DVD Video) burned at 12X, a big improvement over Revision 1 firmware. Just doesn’t quite retain quality at the end of the burn.

NOTE this is a NEW tub of Prodisc. perhaps not as good as my first tub, i’ll need to do an 8X burn to test :slight_smile:



How about bumping the speed up for YUDEN000T01 +R and MXL RG02 -R ? Since both of these are excellent media.

Got the same result as Dee-27 with my Datawrite FUJIFILM03 @12X.

It appears to be the 13x CAV .

I tested the Liggy test firmware tweaked to enable 8x writing on Ritek G03 and the burn came out ok; unfortunately I don’t have the possibility to check the errors but the read-line in NEC3500 is straight until the 4.3G when it goes down with an error. However the disc is read completely by the Pioneer a07 writer.
So for the moment I think it’s a good strategy if the discs are not filled over 4.3G.
Good work Liggy! Thank you!

Second disc worked out flawlessly but NEC reduced it’s burning speed in the end (over 4G) at 4x! Quite a nice move, total time being increased by 20s but the disc is perfectly readable at 16x.

Thanks. I saw Dee-27 already posted a similar graph so I edited my posting and removed the screenshot.

Revision 2 firmware this time with a revised strategy for Fujifilm03 using MXL RG03 write strategy. :bow:

A fairly high PI/PIF error count compared to what we are used to on the ND-3500AG but this disc plays flawlessly on my set top player :slight_smile:

A success for this media :wink:




Look at the latest result with revised write strategy :bigsmile:

Hi Dee-27. Saw your result. As you said the PI/PIF error count are higher than usual - a little too high for my taste. Maybe there’s an even better replacement strategy for this media? Can’t be that many left :slight_smile:

DVD-R 16X
MCC 03 RG20
:sad: TTH01
TTH02
:sad: MXL RG 03
SONY08 D1

DVD-R 12X
TYG02
MCC 02 RG20

I have to leave the strategy tweaking to Liggy :slight_smile: I wouldn’t know where to start :slight_smile:

It’s a little annoying - the burn at 8x takes almost 10 min while at 12x under 7 min, hence the need for more 12x strategies or for a revolutionary change in speed step changes. The drive should start at 6x and reach 8x below 1G point. That’s the strategy of most drives nowadays. It has no harm on quality because 8x speed should be accepted by most media these days not only in the outer 50% but throughout entire disc (except 15% in the beginning I suppose). Do you think such change so deep in the firmware can be made by non-NEC specialists? Liggy? Am I too optimist?