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This story was printed from CdrInfo.com,
located at http://www.cdrinfo.com.
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Appeared on: Thursday, July 22, 2004
NEC ND-2510A


1. Retail Package - Installation

NEC ND-2510A Recorder - Page 1

After the big success of the ND-2500A drive, NEC released in June of 2004 the ND-2510A. The ND-2510A is able to write up to 8.5GB on the new double layer DVD+R9 media. This multispin drive supports both +R/+RW and -R/RW discs along with DVD+R9 discs at 2.4X. Although there are drives on sale that can record a full disc in less time than the ND-2510A, NEC's main interest is burning quality, and not so much the speed.

The ND-2510A takes advantage of NEC's "high resolution writing strategy" and an improved version of NEC's "Active Optimized Power Control" (Active OPC), the "high resolution writing strategy". NEC further includes its own buffer underrun error prevention technology.

- Features

The NEC ND-2510A can read at 12X max DVD-ROM discs and 40X max CD-ROM discs. It can write at 8X for both -R and +R DVD formats, and can write/rewrite at 4X -RW and +RW discs. The recording speed for DVD+R9 discs reaches 2.4X. As a CD recorder, it can record at 32X max when CD-R discs are used, and 16X max with CD-RW discs. Unfortunately, this drive does not support DVD-RAM media.

- Specifications

Drive
NEC ND-2510A
Media
DVD
CD
Transfer Rate Read 5...12x (max 16200 kb/s) 17...40x (2550-6000 kb/s)
Transfer Rate Write DVD-R 8x ZCLV (max 11040 kb/s) CD-R 32x ZCLV (max 4800 kb/s)
DVD-RW 4x CLV (5520 kb/s)
DVD+R 8x ZCLV (max 11040 kb/s) CD-RW 16x CLV (max 2400 kb/s)
DVD+RW 4x CLV (5520 kb/s)
DVD+R9 2.4X CLV (3300 KByte/s)
Access Time 140ms 120ms
Mechanism motorized Tray load mechanism for horizonal and vertical use
Interface IDE / ATAPI
Burst Transfer Rate PIO mode 4 / Ultra DMA 33
Cashe Memory 2MB
Audio headphone jack and volume control at front plus digital-out and line-out at the back (MPC compatible)
Media/Modes supported DVD-ROM, DVD-R, DVD-RW, DVD+R, DVD+RW, DVD-Video, CD-ROM, CD-ROM XA, CD-Audio, CD Extra, CD Text, CD-IReady, CD-Bridge, Photo-CD, VideoCD, Hybrid CD
Writing methods DAO(disc at once), SAO(session at once), TAO(track at once) with zero gap, variable or fixed packet, multisession
Compatibility MPC Level 3, MultiRead, PC2001
Weight 1.02kgr
Dimensions 148mm x 42mm x 190mm

The drive does not support Mount Rainier and it uses the well known RPC II region control, allowing a user to change the drive's region at most 5 times. Below are the drive's main specs as given by NeroInfoTool, VSO Inspector and DVDInfoPro:

- The drive

The European retail package includes an installation guide. Also included is Nero 6 software for writing, InCD for packet writing, Nero Wave Editor for sound editing, NeroVision Express 2 and Nero Recode for authoring, Nero Showtime for DVD playback, Nero Digital (MPEG4), Nero BackIt Up and Nero Cover Designer..

The IDE cable, audio cable and mounting screws are also included.

 

 

 

We received one black colored and one white colored drive from NEC. You can see from the pictures above that the faceplates not only differ in color, but the DVD+R DL logo is shown only on the black colored drive. However, we removed the screws and covers from both drives and found that the the drives are 100% identical. Maybe all drives released from hereon will display the DVD+R DL.

On the rear panel you will find the analogue and digital audio outputs (SPDIF), the IDE slave/master selection pins, the IDE connector and the power input.

Removing the screws and opening the drive's cover voids the drive's warranty. For reference reasons, we post the following pictures. Click on the photos for an enlarged view.

click to enlarge!

The drive uses the same chipset as the ND-2500A, namely the D63630. Clicking on the image above will reveal a high resolution image. Notice that inside the ND-2510A, there is a white barcode label with 2500A written on it!

The following picture shows the laser lens of the ND-2510A . Clicking on the photo will open a higher resolution picture.

click to enlarge!

It should be noticed that the laser head unit of the ND-2510A is exactly the same as that of the ND-2500A drive! Clicking on the above image will show a high resolution picture. For comparison reasons, you can also see a picture of the ND-2500A laser lens here.

- Installation

The device was connected to our test PC and was identified as "NEC DVD_RW ND-2510A" under WinXP. All tests were done with firmware revision v2.15.

In this review, we will be comparing the drive with the LiteOn SOHW-832S since both drives have similar specifications.

- Testing software

In order to perform our tests we used:

  1. Nero CD-DVD Speed v3.12
  2. CDVD Benchmark v1.21
  3. ExactAudioCopy v0.9 beta5
  4. Nero Info Tool v2.24
  5. KProbe v2.2.0 (Reader: LiteOn LDW-811S firmware vHS0Q, LiteOn SOHD-167T firmware 9S13, LiteOn XJ-HD165H firmware CH11, and LiteOn LTD-163 firmware GH5S, Reading speed 8X CAV)
  6. PlexTools v2.15 (Reader: Plextor PX-712A firmware v1.01, Reading speed 8X CLV for CD-R)
  7. DVDInfoPro v2.54
  8. Nero Burning Rom v6.3.1.17
  9. DVD Decrypter 3.2.2.0
  10. CopyToDVD 3.0.19.33

2. Transfer Rate Reading Tests

NEC ND-2510A Recorder - Page 2

Transfer Rate Reading Tests

- CD Format

The NEC ND-2510A supports up to 40X reading speed. Below are the transfer rate graphs, along with the comparison with the LiteOn 832S.

Although the ND-2510A was slightly slower than the LiteOn, the speed difference is negligible. Only with Ultra Speed CDRW media did the NEC's drive perform faster, but again, the difference is only marginal.

- DVD Format

With pressed single layer media, the LiteOn 832S was faster than the ND-2510A. NEC's drive had speed values similar to the Plextor PX-708A.

The two layers of a PTP DVD-ROM disc are read sequentially with the drive starting reading from the inner part of the disc, which is the beginning of each layer, progressing towards the outer range, for each layer. The NEC ND-2510A was again slower than the LiteOn 832S, and this time the speed differences were more pronounced than before.

click to enlarge!

The graph shown above indicates the reading performance of the ND-2510 with OTP dual layer media. The first layer of an OTP dual layer DVD-ROM is read exactly the same way as the first layer of the PTP disc we tested previously. The difference here is the reading strategy of the second layer of the disc. The beginning of the second layer is located in the outer part of the disc, so the drive starts reading from the outer tracks toward the inner part of the disc. The average reading speed was 5.41X, with a low value of 2.87X and a peak value of 7.21X.

As shown above, the NEC ND-2510A continued to be slower than the LiteOn 832S even with DVD-R/-RW/+R/+RW.

NEC's official firmware for the ND drive series includes rip lock. This means that the drive can achieve a higher speed, but the firmware prevents it from ripping at anything higher than a given value of 5.2~5.5X. This explains the big ripping speed difference shown above. There is no official firmware until now to disable this speed barrier, but there are several versions of hacked firmware versions over the internet.

-Appendix

Seek Times

Nero CD-DVD Speed Graphs


3. CD Error Correction Tests

NEC ND-2510A Recorder - Page 3

CD Error Correction Tests

In the following tests we check the drive's behavior when reading scratched / defective audio discs. The test discs used were the ABEX series from ALMEDIO.

- ABEX TCD-721R

Errors total
Num: 3081650
Errors (Loudness) dB(A)
Num: 130508 Avg: -74.0 dB(A) Max: -35.7 dB(A)
Error Muting Samples
Num: 9335 Avg: 1.0 Samples Max: 40 Samples
Skips Samples
Num: 0 Avg: 0.0 Samples Max: 0 Samples
Total Test Result
69.8 points (out of 100.0 maximum)
C2 Accuracy
99.9 %

At first glance, the performance with this disc does not seem good. Most drives start producing errors at least after having passed the 12 minute mark. The total error count is very high, but the maximum loudness error level of -35.7dB is quite reasonable (although higher than that reported for the ND-2500A) and the muting samples count is low while there were no skipped samples. The final score of 69.8 is rather good.

- ABEX TCD-726

Errors total
Num: 394060
Errors (Loudness) dB(A)
Num: 23453 Avg: -77.7 dB(A) Max: -25.1 dB(A)
Error Muting Samples
Num: 1298 Avg: 7.7 Samples Max: 2946 Samples
Skips Samples
Num: 2 Avg: 6.0 Samples Max: 6 Samples
Total Test Result
71.4 points (out of 100.0 maximum)
C2 Accuracy
99.7 %

The Abex TCD-726 test disc is much easier for drives in general to read. That's why the ND-2510A performed better than with the previous CD, but again there is a high total error count and in general there are way too many errors for this disc. The final score of 71.4 is very low and indicates not very good performance here.

- CD-Check Audio Test Disc

The CD-Check Test Disc is a very useful tool for evaluating the Sound Reproduction / Error correction capabilities of a CD player. The disc offers a signal combination with disc error patterns to rate the drive's abilities to read music and reproduce it completely. Five tracks on the disc contain a sequence of progressively more difficult tests. These tracks are referred to as Check Level-1 through Check Level-5.

The tracks are being reproduced through a software multimedia player (i.e. Windows Media Player). Each level is considered as passed, if the tone is smooth, continuous without interruptions, skipping or looping. The higher the Check Level passed, the more reliable the sound reproduction of the tested drive.

Error Level
1
2
3
4
5
NEC ND-2510A
5/5
5/5
3/5
0/5
0/5

The drive successfully passed only the first two out of the five check levels for this test. An average drive will pass the third level and the better drives will reach the fourth or even fifth levels. Again, this is very disappointing performance from NEC.

- Summary

Generally we can say that the CD error correction capabilities of the NEC2510A are average and should be fixed with newer firmware updates...


4. DVD Error Correction Tests

NEC ND-2510A Recorder - Page 4

DVD Error Correction Tests

In the following tests we examine the DVD reading capabilities of the NEC ND-2510A drive with scratched / defective DVD media. For the tests we used CDVD Benchmark and Nero CDSpeed. The reference test media comes from ALMEDIO.

- Single Layer media

ABEX TDR-821

This is a single sided, single layer DVD-ROM with a 4.7GB capacity, and its surface has an artificial scratch of dimensions varying from 0.4 to 3.0 mm.

The following transfer rate screenshot comes from the CDVD Benchmark v1.21 transfer rate test.

The drive can read DVD media up to 12X. The scratched area did not affect the reading process. NEC's drive showed very good behavior with this disc, and no errors were reported.

ABEX TDR-825

This is also a single sided, single layer DVD-ROM of a 4.7GB capacity. The data structure of the disc is exactly the same as that of the TDR-821, with the difference that there are no scratches on it but defective areas of dimensions ranging from 0.5 to 1.1 mm.

There are also fingerprints sized between 65 and 75 micrometers.

Again, the ND-2510A had no problem reading this test disc. A continuous, clean line was produced giving no errors during the reading process. The disc was read as if there were no defects at all.

- Dual Layer media

ABEX TDR-841

This is an 8.5GB dual layer, single sided DVD-ROM disc with artificial scratches of dimensions ranging from 0.4 to 3.0mm, on both layers

.

As is obvious from the screenshot above, the drive had problems reading this test disc. The red dots indicate read errors during the reading process. The test could not be completed by the drive because of unreadable data on the disc. Reading speed was reduced automatically by the drive, but even so, the ND-2510A could not complete the reading process for the entire disc. This is a weak point of the NEC drive, making it a rather bad DVD Dual Layer reader.

ABEX TDV-541

The TDV-541 is a single sided, dual layer DVD-VIDEO disc, with a capacity of 8.5GB.The disc is based upon the TDV-540 series which is designed for inspection and adjustment of DVD-VIDEO players. The discs check the layer switch operation from layer 0 to layer 1 and also include test pictures and test signals for DVD sound files.

The current TDV-541 checks also the error correcting capabilities of the drive and includes scratches from 0.4 to 3.0 mm.

As it is well shown above, the ND-2510A was unable to read this test discs well. Again, according to this reading behavior, the drive can be described as a bad reader. It started to read at 1.91X, lowered the reading speed for an instance, and stopped reading near the end of the first layer, having reached a speed of 4.49X.

ABEX TDV-545

The TDV-545 disc is based on the TDV-540 series. It is a single sided, dual layer DVD-VIDEO disc with a capacity of 8.5GB.

The TDV-545 includes artificial black dots on the data surface, sized from 0.4 to 1.0 mm. It has also 65 - 75 micro meter fingerprints.

Click to enlarge!

The ND-2510A started to read at 1.91X as before, and reached a maximum speed of 4.59X. Although the reading speed was not as high as other 8X DVD recorders, we were happy to see that no read errors were produced.


5. Protected Disc Tests

NEC ND-2510A Recorder - Page 5

Protected Disc Tests

- Reading Tests

To create the image of the various protected titles to the hard disk, we used Alcohol 120% software and the appropriate settings, according to the protection type of the inserted discs. Below you can see the duration of each process as well as the transfer rate in each case.
Game Title
Protection Scheme
Duration
Reading speed
PSX "NBA Jam Extreme"
Lybcrypt
01:07 min
1349 sectors/sec
Serious Sam The Second Encounter v1.07
SafeDisc v.2.60.052
33:19 min
167.7 sectors/sec
VRally II
SecuROM v.2
3:04 min
1868 sectors/sec

The NEC ND-2510A was very fast with the PSX disc (Lybcrypt). During SecuROM v2 ripping, the drive was slightly slower than the 832S, which proven to be a lot faster than Nec's drive when it comes to SafeDisc v2 discs. However, all discs were read successfully, regardless of the ripping speed.

- Writing Tests

ND-2510A supports the DAO-RAW writing mode. For checking the drive's EFM correction status, we used 5 different game titles with different SafeDisc 2 versions having the latest software patches installed. After making the images of the various titles onto the hard disk, we burned them (maximum speed) with Alcohol 120% v1.9.2.1705. Two different discs were created for each title; one with the "Bypass EFM error" enabled and one more with the function disabled.

The table below shows the results of the attempted backups and whether they worked (game installed / played normally), or not.

Drive

Fifa 2004
SD v3.1

Sims Superstar SD v2.9
Sims Unleashed SD v2.8
Serious Sam-Second Encounter
SD v2.51.051
Max Payne
SD v2.51.020
EFM OFF
EFM ON
EFM OFF
EFM ON
EFM OFF
EFM ON
EFM OFF
EFM ON
EFM OFF
EFM ON
Toshiba
SD-M1502
No
No
No
Yes
No
Creative CD5233E
No
No
Yes
No

Ricoh
MP5308D

Yes
No
Yes
Yes

Nec ND-2510A doesn`t produce working backups with the newest v2.8x, v2.9x and v3.1x builds. Partially working backups produced for SafeDisc v2.51.051 & v2.51.020.


6. DAE Tests

NEC ND-2510A Recorder - Page 6

DAE Tests

- Pressed and CDR AudioCD results

The ND-2510A supports up to 40X CAV DAE speed. The following results were reported when using Exact Audio Copy.

The NEC ND-2510A had slower average speeds for both Pressed CD and CDR media. NEC's drive can report C2 errors, but caching is not supported.

Future firmware updates might improve the average DAE speed of the drive. Remember that the NEC ND-2500A reported similar average DAE speeds.

- Advanced DAE Quality

Good recorders can achieve a perfect quality score of 100, but the ND-2510A achieved a score of 99.1, which is still acceptable although not perfect. LiteOn's drive was again faster than the ND-2510A. The drive cannot read Leadin data and Leadout data, but it can read CD Text and Subchannel data. The reported average speed was 24.29X.

- Ripping 90mins AudioCDs

Click to enlatge!

The drive can read/rip flawlessly 90min Audio CDs at an average speed of 23.38X (33.12X max speed). Reading speed was automatically reduced nearly at the end of the reading process, after 77min up to 89min, but the drive read the disc without errors.

- Ripping 99mins AudioCDs

The NEC ND-2510A could not even recognize the 99min Audio CD we used for this test. The time length was wrong and the reading process could not start.

It should be noted that 99mins Audio CDs were also a problem with the ND-2500A. These discs could not be ripped but at least they were recognized by the ND-2500A. This is a point that NEC should focus on in the next firmware release.


7. Protected AudioCD Tests

NEC ND-2510A Recorder - Page 7

Protected AudioCDs

For the test procedure we used three audio discs with different audio copy protections. The ripping process on all protected Audio discs was carried out with Exact Audio Copy v0.9beta5.

The tested protected Audio discs were:

The Cactus Data Shield 200, contains artificial errors that are not easily bypassed by the reader, while the Key2Audio contains a second session, causing problems for readers when trying to read the Table Of Contents (TOC).

The tested tasks are:

The ND-2510A recognized up to the 12th Audio track of the CDS200 disc,

and with the "Retrieve Native TOC" option removed the 13th Data track.

The test results are shown in the following table:

Key2Audio
CDS200
NEC ND-2510A
Ripping process completed, EAC reports no problems, Read&Test CRC comparison successful for all tracks
Ripping process completed, EAC reports no problems, Read&Test CRC comparison not the same for all tracks

For Key2Audio CDs, the ND-2510A rips 100% accurately and EAC did not report timing problems while at the same time, the Read&Test CRC check comparison was the same for all tracks. The drive could not rip 100% accurately CD200 discs since the Read&Test CRC check comparison was not the same for all tracks.

This is a "special" CDS200 build, since it doesn't contain any artificial errors during the ripping process. Most problems occur when trying to write the ripped wav files, since the produced CD-R disc contains C2 and CU errors! This "problem" is rumored to be connected with specific chipset weaknesses.

We ripped the disc contents with EAC and burned the wav file produced from the Cactus Data Shield 200.0.4 - 3.0 build 16a disc with the latest Nero version as AudioCD+CD-Text. The burned media was checked for C1/C2 errors and for BETA/Jitter errors with PlexTools software using Plextor PX-712SA (firmware v1.03) and LiteOn LDW-811S (firmware vHS0Q).

CDS 200.0.4 - 3.0 build 16a
BenQ DW1600A DL
Reading performed without any errors, writing produces only two C2 errors.

The C1/C2 error graph shows that the drive managed to produce a 100% error free disc.

We then tried to extract all wav files with the Plextor PX-712SA and PlexTool DAE Error Correction 5th Level enabled:

No errors were reported after extracting all files. The drive can backup the disc 100% accurately.


8. CD Recording Tests

NEC ND-2510A Recorder - Page 8

CD Recording Tests

- CD-R Format

The drive supports 4X, 8X, 16X (CLV), 20X, 24X and 32X (Zone-CLV) writing speeds.

According to Nero CDSpeed, the drive reached the maximum 32X speed. The test started at 16X and finished at 32.05X with an average speed of 27.36X.

- CD-R Recording Times

We created an 80min data compilation with Nero Burning Rom and recorded it on a 700MB disc. The NEC drive returned a time of 3:39 minutes with 32x writing speed selected, which is a very good time (for 32x). Using Taiyo Yuden media, the drive reported exactly the same results as the ND-2500A.

Because the writing performance can vary according to the inserted media, we present below a chart demonstrating all recording times with various media. Again, the ND-2510A and ND-2500A behavior was exactly the same.

The best performance came with Mam 80min 52X media at 3:39mins. The highest recording time comes with CMC 80min 48X & TraxData 80min 52X media at 3:41mins.

- Other features

The ND-2510A supports overburning, writing up to 90min but only at 16X and can read/write CD-Text.

Unfortunately, the drive is incapable of overburning up to 99min, giving the following error.

- CD-RW Format

The ND-2510A supports 4X, 8X and 16X rewriting speeds, with Ultra Speed Rewritable Media (US-RW).

Below you can see the Nero CD-DVD Speed writing simulation test with blank 24x US-RW media from Mitsubishi Chemicals.

We also used Nero Burning Rom in order to burn a data disc with 24x US-RW media from MC. The data compilation we burned had a size of 651 MB and the duration of the recording process was 5:03 minutes, slightly faster than the ND-2500A that recorded the disc in 5:11 minutes.

- CD-RW Mount Rainier

The NEC ND-2510A doesn`t support the Mount Rainier feature.


9. Writing Quality Tests - 3T Jitter Tests

NEC ND-2510A Recorder - Page 9

Writing Quality Tests - 3T Jitter Tests

In the following page we present the 3T Pit & Land Jitter graphs when using various media burned at 32X CAV writing speed.

- 3T Pit results

Generally the drive performed extremely well with most media used. The highest 3T Pit jitter reached 33nsec, which is below the Red Book limit (35nsec). Best results were achieved with CMC 48X CD-R media. The ND-2510A shows that it is a high quality recorder, just as was the case with the ND-2500A.

- 3T Land results

Again, the average 3T Land results were also low. The maximum 3T Land Jitter reached 32nsec and TY 48X CD-R media produced the best results. Excellent performance from the ND-2510A.

According to all the above graphs, the ND-2510A drive produced excellent results with all the media. It should be noted that all discs were recorded at the maximum supported speed. All the discs we burnt produced very low jitter values, regardless of manufacturer or speed. High quality recording from NEC!


10. Writing Quality Tests - C1 / C2 Error Measurements

NEC ND-2510A Recorder - Page 10

Writing Quality Tests - C1 / C2 Error Measurements

We measured the C1 / C2 error rate on the recorded discs we burned at the various supported writing speeds. The software we used is PleXTools Professional v2.15, and particularly the built-in Q-Check utility. The reader was the Plextor PX-712SA (firmware v1.03).

TraxData 80min 52X @ 32X

TY 80min 48X @ 32X

Mam 80min 52X @ 32X

CMC 80min 48X @ 32X

- Summary

Graphs show that NEC's drive is a good quality recorder. There are some C2 errors reported for certain media, but this could be improved from NEC. It should be noted that all discs were recorded at the maximum speed supported by the recorder.

- Appendix

Media Label
ID Code
Manufacturer Name
Lead Out TIme
CMC Magnetics 80min 48X
97m26s66f
CMC Magnetics
79m59s71f
Mam 80min 52X
97m27s58f
Mitsui Chemicals
79m59s74f
TY 80min 48X
97m24s 1f
Taiyo Yuden
79m59s72f
TraxData 80min 52X
97m15s17f
Ritek
79m59s70f

11. DVD Recording Tests

NEC ND-2510A Recorder - Page 11

DVD Recording Tests

- Writing Performance

The NEC ND-2510A supports DVD-R/RW and DVD+R/RW writing. The maximum supported speed for DVD±R is 8X Z-CLV and 4X CLV for DVD±RW media. Nero Burning Rom reported speeds are shown below.

Below are listed the media codes supported for the ±R/RW formats with various recording speeds, as found in v2.15 firmware:

DVD-R
MCC 01RG20
2.0
4.0
6.0
8.0
FUJIFILM02
2.0
4.0
6.0
TYG01
2.0
4.0
6.0
8.0
TTG01
2.0
4.0
6.0
8.0
PVCR001002
2.0
4.0
6.0
8.0
PVCR002001
2.0
4.0
6.0
8.0
PVCR002002
2.0
4.0
6.0
8.0
TYG02
2.0
4.0
6.0
8.0
SONY08D1
2.0
4.0
6.0
8.0
MXL RG03
2.0
4.0
6.0
8.0
FUJIFILM03
2.0
4.0
6.0
8.0
FUJIFILM04
2.0
4.0
6.0
8.0
MCC 02RG20
2.0
4.0
6.0
8.0
MCC 03RG20
2.0
4.0
6.0
8.0
TTG02
2.0
4.0
6.0
8.0
TTG03
2.0
4.0
6.0
8.0
ProdiscS04
2.0
4.0
6.0
8.0
ProdiscF01
2.0
4.0
6.0
8.0
NAN YA A01
2.0
4.0
6.0
8.0
DVD-RW
JVC0VictorD7
2.0
4.0
MCC 01RW4X
2.0
4.0
DVD+R
RICOHJPNR00
2.4
4.0
6.0
RICOHJPNR01
2.4
4.0
6.0
YUDEN000T00
2.4
4.0
6.0
8.0
YUDEN000T01
2.4
4.0
6.0
8.0
TDK 001
2.4
4.0
6.0
8.0
MAXELL 001
2.4
4.0
6.0
8.0
YUDEN000T01
2.4
4.0
6.0
8.0
YUDEN000T02
2.4
4.0
6.0
8.0
YUDEN000T03
2.4
4.0
6.0
8.0
RICOHJPNR03
2.4
4.0
6.0
8.0
MCC 003
2.4
4.0
6.0
8.0
SONY D11
2.4
4.0
6.0
8.0
PRODISC R03
2.4
4.0
6.0
8.0
MAXELL 002
2.4
4.0
6.0
8.0
CMC MAG E01
2.4
4.0
6.0
8.0
Philips 081
2.4
4.0
6.0
8.0
TDK 002
2.4
4.0
6.0
8.0
TDK 002
2.4
4.0
6.0
8.0
RITEK R03
2.4
4.0
6.0
8.0
NANYA CLX
2.4
4.0
6.0
8.0
PHILIPS C08
2.4
4.0
6.0
8.0
DVD+RW
RICOHJPNW11
2.4
4.0
MKM A02
2.4
4.0
PHILIPS 041
2.4
4.0
SONY S11
2.4
4.0
RITEK 004
2.4
4.0
CMC MAG W02
2.4
4.0
INFODISCA10
2.4
4.0
DAXON D41
2.4
4.0
PRODISC W02
2.4
4.0
DVD+R9
MKM 001
2.4
00000000000
2.4
RICOHJPNR00
2.4
RICOHJPND00
2.4

By using Nero CD-DVD Speed with DVD-R and DVD+R media, we are able to see the 8X Z-CLV recording technology being used by the recorder.

Click to enlarge!

Click to enlarge!

The drive's writing performance was the same for both formats. The recorder started writing at 4.13X and reached a maximum value of 8.28X, with an average speed of 6.79X.

- Burning Tests

We burned 4315MB of data on various DVD±R, DVD±RW media. We used the maximum allowed writing speed for each disc.

Recording times seem to be the same for most DVD-R media, except for Promedia 8X media which was only 2 seconds slower. The drive completed a successful burn at 8X in 9:29mins.
Disc Label
Disc Information
Max Allowed Writing Speed
Total Recording Time (mins)
That's 4X @ 8X
TYG02
8X
9:29
MKM/Verbatim 8X
MCC 02RG20
8X
9:29
MCC 8X
MCC 01RG20
8X
9:29
TraxData 4X
RITEKG04
8X
9:29
Maxell 4X
MXL RG03
8X
9:29
Promedia 8X
Prodisc S04
8X
9:31

With DVD+R media, best recording time came with Memorex 8X at 9:13mins. It should be noted that TraxData 4X media was recorded at 6X in 10:21mins.
Disc Label
Disc Information
Max Allowed Writing Speed
Total Recording Time (mins)
That's 4X @ 8X
TYG02
8X
9:18
Memorex 8X
CMC MAG E01
8X
9:13
TY 8X
YUDEN000 T02
8X
9:21
Traxdata 8X
RITEK R03
8X
9:22
Maxell 8X
MAXELL 002
8X
9:19
Traxdata
RICOH HJPN R01
8X
10:21

- DVD Overburning Tests

Using Nero CD-DVD Speed, we tested if the NEC ND-2510A can overburn using DVD+R and DVD-R media. Unfortunately, the drive does not support overburning, giving the following error with all inserted media.

- DVD+MRW Tests

The NEC ND-2510A does not support Mount Rainier.


12. KProbe/PlexTools Scans - Page 1

NEC ND-2510A Recorder - Page 12

KProbe/PlexTools Scans - Page 1

In the following screenshots you can see the PI/PIF scans for the DVD-R media we burned with the NEC ND-2510A. The software we used for all measurements is the KProbe v2.2.3, and the reader is the LiteOn LDW-811S with "HS0Q patched" firmware, being able to read DVD±R/RW media up to 8X CAV. All scans have been performed at 8X with PI/PIF Sum8. Note that LiteOn drives cannot report PO but PIF errors, despite what KProbe reports. In addition, all discs have been scanned with PX-712SA v1.03 using PlexTools v2.15 for comparison levels.

Comparing the KProbe/PlexTools scans we can see major differences in the reported PI/PIF error rates. The main explanation is that we have two different readers, with different pickup/chipset combinations, scanning at different reading speeds (8X CAV for KProbe, 2X CLV for PlexTools). It's interesting to see the disc scanned at low & high speed, since when error rate increases at a specific disc area, it should appear in both scans...else it would be, perhaps, a reading glitch of the tested reader.

Note: PI/PIF errors only give us a quick look at the error rate of the burned media. Those scans should be taken not as the absolute criteria of the burning quality but as an indication level.

- Summary

The PI/PIF scans shows that the NEC ND-2510A performed well with the used DVD-R media, except for the Promedia 8X disc.

- Appendix

Disc Label
Disc Information
Max Allowed Writing Speed
Total Recording Time (mins)
That's 4X @ 8X
TYG02
8X
9:29
MKM/Verbatim 8X
MCC 02RG20
8X
9:29
MCC 8X
MCC 01RG20
8X
9:29
TraxData 4X
RITEKG04
8X
9:29
Maxell 4X
MXL RG03
8X
9:29
Promedia 8X
Prodisc S04
8X
9:31

13. KProbe/PlexTools Scans - Page 2

NEC ND-2510A Recorder - Page 13

KProbe/PlexTools Scans - Page 2

In the following screenshots you can see the PI/PIF scans for the DVD+R media we burned with the NEC ND-2510A. The software we used for all measurements is the KProbe v2.2.3, and the reader is the LiteOn LDW-811S with "HS0Q patched" firmware, being able to read DVD±R/RW media up to 8X CAV. All scans have been performed at 8X with PI/PIF Sum8. Note that LiteOn drives cannot report PO but PIF errors, despite what KProbe reports. In addition, all discs have been scanned with PX-712SA v1.03 using PlexTools v2.15 for comparison levels.

Comparing the KProbe/PlexTools scans we can see major differences in the reported PI/PIF error rates. The main explanation is that we have two different readers, with different pickup/chipset combinations, scanning at different reading speeds (8X CAV for KProbe, 2X CLV for PlexTools). It's interesting to see the disc scanned at low & high speed, since when error rate increases at a specific disc area, it should appear in both scans...else it would be, perhaps, a reading glitch of the tested reader.

Note: PI/PIF errors only give us a quick look at the error rate of the burned media. Those scans should be taken not as the absolute criteria of the burning quality but as an indication level.

- Summary

The NEC ND-2510A creates DVD-R with rather low PI/PIF error levels, with some small exceptions, and offers compatibility with the majority of the media we used.

- Appendix

Disc Label
Disc Information
Max Allowed Writing Speed
Total Recording Time (mins)
That's 4X @ 8X
TYG02
8X
9:18
Memorex 8X
CMC MAG E01
8X
9:13
TY 8X
YUDEN000 T02
8X
9:21
Traxdata 8X
RITEK R03
8X
9:22
Maxell 8X
MAXELL 002
8X
9:19
Traxdata
RICOH HJPN R01
8X
10:21

14. DVD+R DL - Page 1

NEC ND-2510A Recorder - Page 14

DVD+R DL - Page 1

- Writing Tests

We burned some DVD+R DL discs with DVD-Video content. The source disc was "Gladiator Movie - Special Edition" disc1 with a total size of 6.86GB. First we transferred the movie to the hard disc with DVD Decrypter as ISO format (single file). The following picture shows the media code of the Double Layer disc we used.

Observant users will see from the screenshot above a small bug that the NEC ND-2510A has. The Double Layer disc we used came from RITEK and MKM, and in both cases the drive recognizes them as Single Layer discs. We then used Nero CDSpeed, and again the disc was recognized as Single Layer media.

However, the disc capacity, media type and book type seem to be correct. It appears NEC has to work on their next firmware release on this one.

Afterwards, we used CopyToDVD v3.0.0.16. The friendly wizard prompts us to choose from among the main tasks:

For our test, we used the "Movie & Pictures" option, and then the "Write DVD Video".

The software prompts us to select Video_TS/ISO image folder. We chose the "GLADIATOR.ISO" image and we selected the NEC ND-2510A burner.

After pressing "OK", the burning procedure started, without any unexpected delays (such as 50secs delay experienced with the LiteON 832S). It should be noted that the Booktype setting could not be changed.

The writing process finished after 37:17minutes. The average speed was 2.38X as reported by CopyToDVD software. The recorded disc was in DVD+R9 format.

For comparison reasons, we post some burning results from other DL writers, which all burned the same content ("Gladiator Movie - Special Edition" disc1), using CopyToDVD software:

Drive
Time (mins)
NEC 2510A
37:17
BenQ DW1600A DL
40:16
BenQ DW830A
39:14
LiteON SOHW-832S DVD+R DL BookType
38:33
LiteON SOHW-832S DVD-ROM BookType
38:36
SONY DRU-700A

38:39

The NEC ND-2510A was the fastest drive. Very good performance with Double Layer media from NEC.

We then tried to burn a Double Layer media provided by Traxdata. The drive reported 1X writing speed, making it unable to burn. There is a solution for this issue, but a hacked unofficial firmware must be applied. We will comment on this later on this preview.


15. DVD+R DL - Page 2

NEC ND-2510A Recorder - Page 15

DVD+R DL - Page 2

- Writing Quality

In order to test the NEC ND-2510A DVD+R DL writing quality, we used not our usual readers (LiteOn LDW-811S/Plextor PX-712A) but the LiteOn SOHD-167T with firmware 9S13.

Using KProbe v2.2.3, we got a rather good scan, indicating again, good quality performance from the drive with the DL media recorded. Notice that the disc is not read at 3~8 CAV, but at 2.5X~5X CAV (DVD+R DL media).

Using the Plextor PX-712SA and PlexTools, we were able to scan the DVD+R DL media:

The reported PI error rate was far lower than the 280 limit and no PO failures were reported, giving again an indication of a very good quality burned disc. The NEC drive continues to produce very good quality burns.

- Compatibility

Unfortunately, we were not surprised to see that the DVD+R9 media was not compatible with most stand-alone DVD players, since there is no official booktype setting utility provided by NEC. The Double Layer is recorded with DVD+R DL booktype.


16. BookType Setting

NEC ND-2510A Recorder - Page 16

BookType Setting

The NEC ND-2510A drive doesn't officially support BookType Setting for DVD+R/+RW formats. We used the latest version of Nero Burning Rom and tried to change the booktype setting of a DVD+R disc.

When the disc was recorded, we checked the booktype setting of the recorded disc, but, no matter what Nero reports, the booktype was not changed.

There are two (2) un-official utilities to change the DVD+R DL Booktype Setting, more on this later...


17. Conclusion

NEC ND-2510A Recorder - Page 17

Conclusion

The ND-2510A is the first NEC Double Layer recorder and has the exact same specs at its predecessor, the ND-2500A. The specs of both drives are exactly the same with the only difference of the DL writing.

The drive's general performance was mixed, with mostly weak performance as a reader. The CD/DVD error correction needs improvement, it cannot make SafeDisc 2.60+ backups, cannot recognize 99mins discs and the supported media list for 8X ±R is rather small, at least with the official v2.15 firmware.

The ND-2510A shows its true value in writing quality tests with certified 8X ±R. The recorder has excellent writing quality, making it one of the best DVD writers available. The writing performance with Double Layer media from Verbatim was very good, while the drive didn't recognize Ritek's DL media, future firmware updates expected to fix this.

Another negative is that the drive doesn't support the Booktype Setting for +R/+RW media. At least as it currently stands, there is the option to change the Booktype of DVD+R DL media to DVD-ROM, increasing compatibility with DVD players.

The price of this drive is considerably low, making it a very good purchase. If you need a good quality writer, but you don't care much about reading performance, this is the choice for you.

- The Good

- The Bad

- Like To be fixed


18. Firmware Hacks - Page 1

NEC ND-2510A Recorder - Page 18

Firmware Hacks - Page 1

There are a lot hacked firmware versions available all over the internet. The main interest is in expanding the supported media list and increase the compatibility of Double Layer media. Also, NEC included a maximum ripping speed limit that can be overcome with unofficial firmware flashing.

NEC claims that the previous model, the ND2500A is not capable of writing Double Layer media. However, the two NEC drives are the same. You can see below the pictures that show that even the laser heads are identical. Can you tell from which drive the picture was taken?

Since the ND-2510A and ND-2500A drives are identical, there is an unofficial firmware available for the ND-2500A to make it capable of writing Double Layer media.

Several writing quality tests are available in our forum. As NEC reports ''there is no support of burning DVD-9 dual layer for ND-1000A, ND-1100A, ND-1300A, ND-2500A and oem versions ND-2100A, ND-5100A and ND-5500A. Only standard 4,7GB (DvD-5) will be supported. There won`t be any official firmware updates available to change it."

In the following pages we will comment on some problems we came across with the ND-2510A, and if they can be solved with a hacked firmware version.


19. Firmware Hacks - Page 2

NEC ND-2510A Recorder - Page 19

Firmware Hacks - Page 2

- Booktype Setting

As NEC claims "the DVD writers we sell in Europe do not need a bitsetting tool because they already set to the most compatible condition. But in some cases it is not compatible to (older) hardware equipment or standalone DvD players. With ND-1000A and ND-1100A a burned DvD+R media will be characterized automatically as DvD-ROM, but a DvD+RW will be characterized as itself. The ND-1300A, ND-2500A and ND-2510A marks DvD+R, DvD+RW, DvD-R and DvD-RW as given. There`s no chance to change this settings."

Although NEC does not offer a booktype setting utility, there are solutions to this all over the internet. DVD Info Pro will include a small booktype setting utility for the ND-2510A drive in the next release. The following pictures show the booktype setting changed using this program.

With DVD Info Pro, we have the ability to change the booktype setting up to 255 times. We would be happy to see this limit lifted by the authors of the software.

There is also a small utility available, called WinBType, that can be used to change booktype setting of +R DL discs. This utility is supposed to come from NEC, but NEC has denied its existence..

The drive was empty, but we needed to eject the tray once for the program to be able to make the necessary changes.

As you can see, the booktype was changed successfully. Unfortunately, this small utility can only change the booktype setting for +R DL media and not for +R/+RW media.

These issues are discussed in our forum, with more user comments on this matter.


20. Firmware Hacks - Page 3

NEC ND-2510A Recorder - Page 20

Firmware Hacks - Page 3

- Double Layer Media writing

We tried to burn Double Layer media provided by Traxdata. The latest version of DVD Info Pro reports RITEK D01 media code. It should be noted that this type of Double Layer media is not supported by NEC's official media list.

DVD+R9
MKM 001
2.4
00000000000
2.4
RICOHJPNR00
2.4
RICOHJPND00
2.4

We used the latest version of Nero Burning Rom with no luck. Nero reports 1X recording speed with this disc, and is unable to burn it.

We then applied an un-official firmware (from Herrie) using a DOS flasher. The disc was recognized by the recorder with 2.4X supported writing speed. Afterwards, we used CopyToDVD. The burning procedure started, without any unexpected errors. The booktype setting was changed prior to writing to DVD-ROM.

The drive managed to complete a successful burn without any errors. Recording time was almost the same as with official firmware. No delays of any kind were noticed.

The average burning speed was 2.38X, the same as the official firmware's speed. We used the Plexwriter PX-712SA (firmware version v1.03) with PlexTools 2.15 to check the writing quality of the disc.

It is interesting to see if this error is reported because of the drive or because of the disc itself. Unfortunately, visible defects can be seen on the disc. The drive however managed to record even on the defective area. So, this error should not be combined with the hacked firmware version or with the drive's writing quality performance.

We then tried to use a LiteOn drive to get KProbe quality scans, but even the LiteOn drive we used reported the same error. Not even the ND-2510A was able to read the disc.


21. Firmware Hacks - Page 4

NEC ND-2510A Recorder - Page 21

Firmware Hacks - Page 4

- Writing Quality

Unofficial firmware releases change the maximum supported writing speed for certain media that can only be written at 4X or even lower. It is interesting to see the writing quality with such discs, using hacked firmware. For reference reasons, we demonstrate the following KProbe scans, along with the PlexTools scans.

Note that all the following media was supported only at 4X by official v2.15, while with the un-official firmware (Herrie's 1.07v2beta6) it allowed up to either 6X or 8X.

Reading error!

Reading Error!

It seems that the writing quality has totally changed for this drive. With the hacked firmware we were able to write at higher speeds, but writing quality is reduced. Some discs produced read errors, and MMORE discs produced PIF errors. PIF errors were not reported with all other discs, but PI levels were higher than those we show when the official firmware was used.


22. Firmware Hacks - Page 5

NEC ND-2510A Recorder - Page 22

Firmware Hacks - Page 5

- Writing Quality

Unofficial firmware releases change the maximum supported writing speeds for certain media that can only be written at 4X or even lower. It is interesting to see the writing quality with such discs, using hacked firmware. For reference reasons, we demonstrate the following KProbe scans, along with the PlexTools scans.

Note that all the following media was supported only at 4X by the official v2.15, while with the un-official firmware (Herrie's 1.07v2beta6) it allowed up to either 6X or 8X.

As we saw earlier, MMORE DVD-R media did not perform well with the un-official firmware.

On the other hand, MMORE DVD+R media performed much better, giving low PI/PIF level values, just as CMC media did. Promedia 8X discs returned the worst results in this test.

Comparing DVD-R media writing quality and DVD+R media writing quality, we could say that the NEC ND-2510A is a far better quality writer with the +R format media. However, again quality results were better with the official firmware, but speed was lower then.



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