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Appeared on: Tuesday, December 09, 2003
Optorite DD0401 Dual DVD Recorder


1. Retail package - Installation

Optorite DD0401 Dual DVD Recorder - Page 1

 

Optorite proceeds on to 8x dual recording with it's new DD0401 ATAPI burner. The Taiwanese manufacturer has already gained momentum in the optical storage market, with the successful DD0203, released some months ago. Based on the Sanyo chipset, possibly the biggest manufacturer of LSI for DVD recorders, the DD0401 combines impressive specifications at an affordable price. The drive is available in the market for less that $150.

- Features

Optorite DD0401 uses Sanyo's Burn Proof technology to avoid buffer underun problems when recording on CD/DVD media.

The dual burner offers 8x DVD+R, 4x DVD-R/+RW and 2x DVD-R writing and 12x DVD-ROM reading. The drive is also a 40x/24x/40x CD-RW writer.

As with previous Optorite DVD recorders, the DD0401 supports High Density recording for CD-R media. Developed by SANYO Electric Co., Ltd., HD-BURN allows conventional CD-R media (700MB) to double the writing capacity (1.4GB). This is achieved by shortening the minimum pit length to 0.62µm (0.82µm for CD-R), using more efficient modulation and a different error correction sheme (RS- Product code). According to Sanyo, this fills the gap between CD and DVD media, for users who require more than the 700MB offered by CD but where the 4.7GB of DVD is too much.

Optorite also features Sanyo 's "Safe-BP" technology, which stops writing at the point of the recording error, and restarts writing while changing the recording speed by monitoring the pickup servo in real time. "Shock BP" developed a drive which is resistant to "shock" as a development target function.

- Specifications

Of course, the most awaited feature of the new Optorite DD0401 is the supported writing speeds. The new drive offers 8x DVD+R (Z-CLV) recording, and DVD+RW at 4x CLV. DVD-R media can be burned at 4x CLV and DVD-RW at 2x CLV.

Writing under HD-BURN can be achieved at 24x maximum. The HD-BURN discs can be read at 78x max, considering the increased density of the recorded data.

The maximum CD writing speed for CD-R is 40x CAV and 24x P-CAV, when using Ultra Speed CD-RW media. Reading of CD-ROM can be done at 40x CAV maximum. The drive is also a fast DVD reader with 12x CAV for DVD-ROM single layer and 8x for DVD±R/RW and dual layer DVD-ROM.

Optorite chose a 2MB buffer to obtain safe recordings at 8x. The drive also supports RAW DAO 96 writing (CD).

The drive uses the RPC II region control, allowing a user to change the drive's region at most 5 times. For our tests, we set the region code to 2 (Europe).

- Retail package

The retail package includes the Optorite DD0401 ATAPI drive, a quick installation guide, an audio cable and mounting screws.

The attached software is Nero Burning Rom v5.5 for CD/DVD authoring, InCD for packet writing and Cyberlink PowerDVD player. Sonic MyDVD is also included in the retail package.

- The drive

The drive's front panel has a few design features which differ from the stock standard design we have come to expect. The drive tray door, occupying the upper half of the drive, protrudes and curves outwards slightly at the centre. There are the usual DVD/CD and R/RW markings located on the left, centre and right hand sides of the tray door, with the eject hole on the lower rim and right of centre. The lower half of the drive's front panel, includes the headphone jack and volume control situated on the very left, the power/activity led directly below the eject hole and right of centre, and the next track and stop/eject buttons on the right. Both buttons are round with the stop/eject being slightly larger.

The rear panel has the standard layout proceeding from left to right - analogue and digital audio outputs (SPDIF), master/slave select, 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 photos. The Optorite DD0401's mainboard (based on the Sanyo LC897490 chipset) and drive mechanics have been designed by Optorite, which was not the case with their previous model, the DD0203. Click on photo of the mainboard below for a higher resolution image:

Click for Higher Resolution!

- Installation

When connected to our test PC with Windows XP operating system, the drive was identified as "OPTORITE DVD RW DD0401". All tests were done with firmware revision v1.20E.

The following pages include the test results of the Optorite drive along with two other DVD burners, the Philips DVDR824P and the Plextor PX-708A, for comparison.


2. Data CD Reading Tests

Optorite DD0401 - Page 2

Data CD Reading Tests

- Pressed CD results (Click for CDSpeed results)

The Optorite DD0401 drive supports a maximum reading speed of 40x for the CD-ROM format. The pressed disc was read using CAV mode and gave an average speed of 30.44x. The graph above shows that the Optorite drive was the slowest among the three drives, however the results are still satisfactory. The reading speed reached a maximum of 40.29x at the end of the reading process.

On the seek times test the Optorite DD0401 gave the fastest results among the three drives. The random seek was better than the manufacturers specifications with 84ms while the drive needed 147ms for the full seek test.

- CD-R Media results (Click for CDSpeed results)

The Optorite DD0401 CD-R media read results were similar to those of the pressed disc. The reading method was again CAV and the reported start speed was at 17.25x. As with the pressed disc, the Optorite drive was slower in comparison with the Plextor and Philips drives.

However, in the seek times the Optorite drive was again fastest. The Random seek time returned 79ms, a value that is much lower than the manufacturer's specifications (100ms). The graph above shows conclusively that the Optorite drive is faster than Plextor and Philips on the seek times test.

- ReWritable Media (Click for CDSpeed results)

The Optorite DD0401 supports the 40x reading speed with CAV mode using rewritable media. For the reading test we used 24x High Speed rewritable media from Mitsubishi Chemicals.

The performance with CD-RW was not all that different than that with CD-R media. The disc was read under CAV mode and the reported average reading speed was 30.65x.


3. CD Error Correction Tests

Optorite DD0401 Dual DVD Recorder - Page 3

Error Correction Tests

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

- ABEX TCD-721R

Errors total
Num: 124502328
Errors (Loudness) dB(A)
Num: 582831
Avg: -25.2 dB(A)
Max: -4.8 dB(A)
Error Muting Samples
Num: 22780
Avg: 3336.6 Samples
Max: 3584 Samples
Skips Samples
Num: 22
Avg: 1128.7 Samples
Max: 2939 Samples
Total Test Result
45.1 points (out of 100.0 maximum)

The drive did not manage to correct severe errors present on the ABEX TCD-721R test disc. Both the amount and the level of the reported errors are high, resulting in a low quality score. On the other hand, the drive starts reporting errors in the expected position and not earlier, meaning that the optics and error correction circuitry are tuned to specifications.

The amount of muted samples was also very high. This means that the drive will generally play your old audio discs well, as long as their physical condition is not as bad as the defects present on the Abex 721R test disc. These are the initial impressions regarding the overall performance of the drive and the following, additional tests should help formulate more accurate conclusions.

- ABEX TCD-726

Errors total
Num: 0
Errors (Loudness) dB(A)
Num:18
Avg: -38.8 dB(A)
Max: -33.1 dB(A)
Error Muting Samples
Num: 0
Avg: 0.0 Samples
Max: 0 Samples
Skips Samples
Num: 2
Avg: 30.0 Samples
Max: 30 Samples
Total Test Result
85.3 points (out of 100.0 maximum)

The Abex TCD-726 test disc is much easier for drives in general to read, and as such, the Optorite DD0401 drive corrected almost all errors with a high overall quality score of 85.3 points.

- 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 ability 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 reproduced (played) through a software multimedia player (i.e. Windows Media Player). Each level is considered as passed, if the tone coming out from the speakers 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
Optorite DD0401
5/5
5/5
5/5
5/5
5/5

The drive passed all 5 Check Levels of the test. The performance reveals very good sound reproduction and error correction. The fifth level includes an error size of 1.500mm, and the drive managed to play the file without audible clicks.

The results with the Abex TCD-721R (max scratch size 3.00mm) and CD-Check test show that Optorite DD0401 is capable of correcting errors comimg from scratches sized up to 1.500mm approximately.

- Summary

Test Disc
Reading Speed
Score
ABEX TCD-721R
Max
45.1
ABEX TCD-726
85.3
Average Score
65.2

Combining the two scores from the ABEX tests gives an average total score of 65.2 points out of 100. This is not the highest score we have experienced from a drive, but it does not fully reflect the true picture of the drive's performance. The Optorite DD0401 managed to read severely scratched discs with a high accuracy, as long as the scratches did not exceed a critical size.


4. DVD Reading Tests

Optorite DD0401 Dual DVD Recorder - Page 4

DVD reading tests

- Single Layer DVD-ROM (Click for CDSpeed results)

In the DVD single layer read test, and in comparison with the Philips and Plextor drives, while all three drives support a maximum reading speed of 12x for the DVD-ROM media, the Philips DVDR824P is fastest with an average speed of 9.36x while the Optorite DD0401 was slowest at 8.82x. The reported end speed is 11.8x for the Optorite (slowest), with the fastest being 12.51x for the Philips drive.

The manufacturer's specifications give the Optorite drive a random seek time of 130msec for DVD. NeroCDSpeed reported that the drive needed only 96ms for the Random seek test. On this test the fastest time was from Plextor with 91ms. On the other two seek time tests, CdSpeed reported that the Optorite drive clocked 109ms for the 1/3 seek and 177ms for the full seek.

- Dual Layer PTP DVD-ROM (Click for CDSpeed results)

In this test, the two layers of a PTP DVD-ROM disc are read sequentially with the drive starting the read process from the inner tracks on the disc, which is the beginning of each layer, and progressing towards the outer tracks for each layer.

From the manufacturer's specifications, the Optorite DD0401 has a maximum reading speed of 8x with dual layer DVD-ROM discs. The drive however recorded a maximum reading speed of 8.59x. As can be seen from the graph above, the Optorite drive is faster in all three modes compared to the other two drives.

Just as with cd-r media, on DVD media the Optorite returned low seek times. The drive returned a random seek time of 102ms, slightly faster than the Philips drive with 105ms.

- Dual Layer OTP DVD-ROM

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 for the second layer of the disc. The beginning of the second layer is located in the outer part of the disc, so the drive continues its reading of the second layer beginning from the outer tracks and continuing inwards towards the inner tracks of the disc (instead of returning to the inner tracks and reading towards the outer tracks as is the case with a PTP disc).

- DVD Ripping Tests

We measured the DVD-Video ripping speed of the Optorite DD0401 using the latest version of DVD Decrypter. The DVD Video title was the "Matrix" pressed DVD (single layer, 4.38GB).

In the DVD Video reading/ripping test, the Optorite DD0401 (12x CAV) ripped the DVD movie files to the hard disk at 5.839 KB/s (6.1x) average. Compared to the Philips DVDR824P drive, the Optorite drive is significantly slower.

- DVD Recordable / Rewritable reading Tests

The graph below shows the Nero CDSpeed results with the following media:

This drive proved a very fast reader. On both plus and minus formats, the Optorite DD0401 managed to read the tested discs faster than the other two drives included for comparison. The reported average reading speed is 6.28x for the +RW format and 6.3x for the +R format.

As for the dash format, NeroCdSpeed reported that the Optorite drive reads the -R format at an average speed of 6.31x and the -RW at 6.28x.


5. DVD Error Correction Tests

Optorite DD0401 Dual DVD Recorder - Page 5

DVD Error Correction Tests

The following tests examine the DVD reading capabilities of the Optorite DD0401 drive with scratched and defective DVD media. For the tests we used CDVD Benchmark and Nero CDSpeed. The reference test media came from ALMEDIO.

- Single Layer media
ABEX TDR-821

This is a single sided, single layer DVD-ROM with 4.7GB capacity, where the surface has an artificial scratch of dimensions varying from 0.4 to 3.0 mm. The following transfer rate graph comes from the CDVD Benchmark v1.21 transfer rate test.

The Optorite DD0401 read the 821 test disc without reporting any read errors. The yellow dots indicate that the drive returned different reading speeds for each read retry, as a result of the scratched areas. The disc was read accurately at 12x CAV.

ABEX TDR-825

This is also a single sided, single layer DVD-ROM of 4.7GB capacity. The data structure of the disc is exactly the same as that of the TDR-821, with the difference that instead of scratches, there are defective areas of dimensions ranging from 0.5 to 1.1 mm. There are also fingerprints sized between 65 and 75 micrometres.

As in the previous test, no read errors occured with this disc. The drive read the disc with CAV mode but did not manage to reach the maximum reading speed of 12x. The difficult areas on the specific disc seem to be the artificial fingerprints, where the drive slowed down to 11x CAV in order to complete the test .

- 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.

Reading of the dual layer DVD-ROM disc produced some interesting results. As can be seen from the graph above, the result is not a continuous ascending line indicating CAV reading from beginning to end, but instead the speed dropped to around 4x where it appears to have gone into CLV reading. The drive did manage to read both layers with some difficulty though, especially towards the end, and did not surpass 7x reading speed althoughand it finished the test without posting any read errors.

ABEX TDR-845

The TDR-845 test disc is a single sided, dual layer DVD-ROM disc with a capacity of 8.5GB. The difference between the TDR-845 and the TDR-841 test disc used in the previous test, is that the TDR-845 includes defective areas and fingerprints. The dimensions of the defective areas range from 0.5 to 1.1 mm and the fingerprints have a height of 65 to 75 micrometres.

The first layer was read intact. The second layer however, produced similar results to the test to those of the TDR-841 disc, where reading dropped speed and continued at a constant velocity.

ABEX TDV-541

The TDV-541 disc is a single sided, dual layer DVD-VIDEO disc, with a capacity of 8.5GB.The disc is based on the TDV-540 series which is designed for inspection and adjustment of DVD-VIDEO players. The disc checks the layer switch operation from layer 0 to layer 1 and also includes test pictures and test signals for DVD sound files. The current TDV-541 also checks the error correcting capabilities of the drive and includes scratches sized from 0.4 to 3.0 mm.

The results are presented above as 2 alternating screen shots. The drive initially returned a "NO SEEK COMPLETE" error message. The test was run a second time and again returned the same result. The DVD was then viewed with PowerDVD and played without any visible problems. We ran the test a third time and the result is the second of the screen shots from above. The 3rd test completed without errors but it is evident that the drive had difficulty.

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 also has 65 - 75 micrometre fingerprints.

 

 

Black dots and fingerprints on the disc surface did not create any reading problems, and the drive finished the task successfully.


6. Protected Data Disc Tests

Optorite DD0401 Dual DVD Recorder - Page 6

Protected Disc Tests

- Reading Tests

The purpose of this test is to create an image from various protected titles to the hard disk. CloneCD v4.3.1.9 software was used with the appropriate settings, according to the protection type of the inserted discs. Below are summarized the capabilities of the Optorite drive, as presented by CloneCD software.

The game titles we used for each protection scheme are illustrated in the table below:

Game Title
Protection Scheme
PSX "NBA Jam Extreme"
Lybcrypt
Serious Sam The Second Encounter v1.07
SafeDisc v.2.60.052
VRally II
SecuROM v.2
PSX Pressed Media

SafeDisc v.2

SecuROM

In general terms, the performance of the Optorite drive when compared with the other two drives can be characterised as average. It performed reasonably well in both the PSX Pressed media and SecuROM ripping tests, but proved quite slow with SafeDisc.

Writing Tests

For checking the drive's EFM correction status, two different game titles were used with different SafeDisc 2 versions and the latest software patches installed. After creating the images of the various titles to the hard disk, we burned them (maximum speed) with CloneCD v4.3.1.9. Two different discs were created for each title; one with the "Amplify Weak Sectors" feature enabled and one with the function disabled.

In the table below can be seen as to whether the produced backups were working (game installed / played normally), or not.

Drive
Game Title
SD2 Build
Settings
Amplify Weak Sectors On
Amplify Weak Sectors Off
Optorite DD0401
Max Payne
v2.51.020
NO
NO
Serious Sam - The Second Encounter v1.07
v.2.60.052
NO
NO

The backups were tested in various CD-RW and DVD-ROM drives, but none of them worked. Optorite DD0401 is not a powerful solution to create backups of protected discs.


7. DAE Tests

Optorite DD0401 Dual DVD Recorder - Page 7

DAE Tests

- Pressed and CDR AudioCD results

The Optorite DD0401 uses the 40x CAV strategy for CD-DA. Below can be seen the CDSpeed transfer rate test with a pressed audio CD:

According to CDSpeed, the average reading speed with this disc was 30.52x, while the reported seek times were satisfactory.

We ripped the contents of the same audio disc to the hard disk with CDDAE software. The drive gave an average ripping speed (burst mode) of 28.5x:

In the same test, the Philips and Plextor drives were only slightly faster giving average speeds of 29.4x and 29x respectively.

The same pressed audio disc was copied onto CD-R media and was read again with CDspeed. Philips DVDR824P gave the highest ripping speed again, finishing the task at 29.8x average.

- Advanced DAE Quality

In the Nero CD Speed Advanced DAE test, the Optorite drive logged a perfect 100 in the quality score, with an average speed of 28.67. This is marginally slower than the speeds returned by both of the other drives.

- Support of 99mins AudioCDs

Ripped up to the 87th minute.

- Reading/Ripping Protected AudioCDs

For this test procedure two audio discs with different audio protections were used. The tasks tested were recognition and ripping to the hard disk. The software used was Exact Audio Copy.

* Pressed Audio disc protected by Sony Key2Audio (Celine Dion - New Day Has Come)

* Pressed Audio disc protected by Cactus Data Shield 200 (Natalie Imbruglia - White Lilies Island)

Key2Audio
CDS200
EAC
Optorite DD0401
OK
Recognized the disc.Ripped and played all tracks on the disc except the first.
Philips DVDR824P
OK
Problematic
Plextor PX-708A
OK
OK

In the read/rip protected audio CDs test, the drive managed to rip both the Key2Audio and the CDS200 audio protected discs, but presented problems with the first track. The first track could not be ripped.


8. CD Recording Tests

Optorite DD0401 Dual DVD Recorder- Page 8

CD Recording Tests

- CD-R Writing Tests

The Optorite DD0401 supports 8x, 16, 24x, 32x, and a maximum of 40x CAV writing speeds. The graph below shows the CDSpeed writing simulation graph with Taiyo Yuden 48x CD-R media.

The writing speed at the beginning of the disc is 18.23x and increases linearly reaching the maximum of 41.17x at the end. According to CDSpeed, the average writing speed with an 80min disc is 31.18x.

As can be seen from the yellow line on the graph below, the rotation speed stayed relatively constant (CAV).

 

 

- Recording Times

For the burning tests we created an 80min data compilation with Nero Burning Rom and recorded the data on a 700MB disc. The Optorite DD0401 finished the task in 3:26 minutes, with the 40x writing speed selected. The performance is acceptable for 40x recording speed.

Below are the best write times of the drive for 8x, 16x, 24x, 32x and 40x speeds.

The drive recorded at the maximum supported speed with most media brands we tested. Below you can see the recording times at 40x:

The best recording times for each drive are illustrated below:

Optorite and Plextor drives are faster due to the 40x writing speed. The Plextor drive gave the lowest recording time since it offers 40x P-CAV as opposed to the 40x CAV of the Optorite drive. The Philips drive follows with 24x maximum recording speed.

- CD-RW Writing Tests

The Optorite drive supports 24x P-CAV maximum rewriting speed, with Ultra Speed rewritable media. The following graph shows the results of the writing process with a 24x US-RW from Mitsubishi Chemicals.

The test started at a speed of 18.34x, accelerating to the maximum writing speed of 24.10x at around the 12 minute mark and continuing on at that speed for the rest of the procedure. The average writing speed is 23.42x.

 

We used Nero Burning Rom in order to burn a US-RW data disc from Mitsubishi Chemicals. The data compilation size was 650 MB and the duration of the recording process with the Optorite DD0401 was very good 03:48min. The best rewriting times for all the drives are presented in the following graph. Note that the Philips drive supports 10x CD-RW.

- Packet Writing Tests

We used InCD and Mitsubishi Chemicals 24x US-RW media for all Packet Writing tests. The formatted disc had 530mbs of free space. We copied a 403 MB file (403.147 KB) from the Hard Disk (on the same PC as the writer) to the formatted RW media through Windows explorer (drag and drop).

 
Duration
Average speed
Read
6:05min
7.36X
Write
6:04min
7.38X

- Other features

Overburning
Up to 89min
CD text reading/writing
Yes


9. Writing Quality Tests - 3T Jitter Tests 1

Philips DVDR824P DVD+RW - Page 9

Writing Quality Tests - 3T Jitter Tests

We used 80min 48X CD-R media from Taiyo Yuden and burned the same AudioCD project at 8x, 16x, 24x, 32x and 40x. The following graph shows the results of the 3T Pit & Land Jitter tests.

- 3T Pit results

Generally, the drive did not fair well in the 3T pit jitter tests with the specific media. The highest 3T pit jitter was reported from the discs recorded at speeds of 32x and 40x, in the outer tracks. The jitter reached was around 45nsec, which is well above the Red Book limit of 35nsec. At the 20min mark for 24x speed, jitter increased sharply maintaining this level and then peaking near the end. The 32x and 40x speeds remained reasonably steady up until the 50 min mark and then peaked dramatically. 8x and 16x exhibited steady performance although they too were at or above the 35nsec mark near the end.

The average 3T Jitter values for all recording speeds are illustrated in the following table. Again, it shows how close these reading are to the Red Book limit of 35nsec.

- 3T Land results

The average 3T Land results presented in the graph above, are slightly increased over those in the previous measurements of the 3T Pit Jitter. Here once again the 32x and 40x discs gave high jitter especially in the outer tracks of the disc.

The 8x writing speed also seems to produce jitter higher than the nominal 35nsec, with the 16x speed being more preferable when writing audio CDs.

- Summary

The Optorite DD0401 did not give good results in the jitter measuring tests. In most cases, the jitter exceeded 35nsec indicating that there may be problems (bad quality). The tests on the following pages, where we check the C1 and C2 error rates for the same discs, will indicate just how much of a problem the drive may have.


10. Writing Quality Tests - 3T Jitter Tests 2

Philips DVDR824P DVD+RW - Page 10

Writing Quality Tests - 3T Jitter Tests

Here we used 80min CD-R media from various manufacturers and burned the same AudioCD project at 40x. The following graphs show the 3T Pit & Land Jitter results.

- 3T Pit results

The SKC disc starts off with a high jitter level but levels off to an acceptable level (i.e. below the 35nsec level). All the discs exhibited a jump to well above the critical 35nsecs. Best performance was achieved with the EMTEC, RITEK and MEMOREX discs.

The average 3T Jitter values for all recording speeds are illustrated in the following table.

- 3T Land results

The average 3T Land results are slightly increased over those in the previous measurements of the 3T Pit Jitter, although they contain fewer graduations. Here too however, there is a sharp jump at the end of the disc where data density is at its highest.

In the following page, we next check the C1 and C2 error rates for the same discs, to come up with conclusive results.


11. Writing Quality Tests - C1 / C2 Error Tests

Optorite DD0401 Dual DVD Recorder- Page 11

Writing Quality Tests - C1 / C2 Error Measurements

We measured the C1 / C2 error rate of the recorded discs burned at the various supported writing speeds. The software used was UMDoctor Pro II v 1.0. The read drive used was the Optorite DD0203 v 2.30.

The graphs below illustrate the results for various CD-R media.

 

  • Memorex 52x recorded at 40x

  • Emtec 48x recorded at 40x

Below are presented details regarding the CD-R media used in this test.

Disc
ID Code
Capacity
Taiyo Yuden 48X
TaiyoYuden 97m24s01f
79:59:72
EMTEC 48X
97m17s06f
79:59:74
Memorex 52X
CMC Magnetics 97m26s66f
79:59:74
Ritek
97m15s17f
79:59.70
Prodisc
97m32s19f
79:59.72
SKC 48X
97m26s26f
79:59:73
- Summary

The results with the varous manufacturers' discs indicate good overall performance for all the supported writing speeds. The C1 error rate is low, and no C2 errors were reported.


12. HD BURN

Optorite DD0401 dual DVD±RW recorder - Page 12

HD BURN FUNCTION

As with Optorite's first DVD recorder, namely the DD0203, the new DD0401 offers the HD-Burn function. HD-BURN allows writing twice the amount of data than can normally fit on a CD-R disc. This means that up to 1.4GB of data can be recorded on 700MB CD-R media. While the feature is currently supported only on DVD recorders, it only applies to CD-R writing.

HD-BURN is supported by Nero Burning Rom from Ahead and bundled with the Optorite DD0401 retail package. Using HD-BURN, the user is able to create one of "CD-ROM" (ISO, UDF, ISO/UDF, Bootable), HD-BURN -Video or just copy an HD-BURN disc.

HD-BURN Writing

We used the Nero HD-Burn writing method to compile a new CD-ROM ISO. We inserted a 700MB CD-R disc and created a new project requiring 1.358GB capacity. Below you can see the relevant media information reported by Nero Burning Rom:

Burning using HD-BURN is allowed at the maximum speed of 24X.

Writing is only allowed with the "Disc at Once mode" set, so the "Finalize" selection is always enabled. In addition, writing simulation is not supported. Burn Proof was applied in our case when using HD-BURN writing mode:

The duration of the writing process at 24x was 7:45min:

We also created a 1.085GB CD-ROM ISO file and burnt it with Nero Burning Rom at 24x. Recording was successfully finished in 6:03min:

The Optorite DD0401 drive cannot write 90min or 99min CD-R media using the HD-BURN function.

Reading the HD-BURN discs

The produced HD-BURN ISO discs were completely readable with the Optorite DD0203 and Optorite DD0401 drives. However, the discs could not be recognized or read by any other drive we tested. This is also confirmed by Sanyo, declaring that the discs are not readable by drives or players currently available in the market.

In the following screenshots you can see the Nero CDSpeed transfer graphs for the recorded discs:

Nero CDSpeed recognized the discs as DVD-R media, due to the increased amount of data stored. The drive read both discs in a similar way, starting at 3.82x and finishing at 8x, approximately. The reported seek times were also very low.

An interesting observation of the CDSpeed graphs is that although the transfer rate line (yellow) refers to CAV reading, the rotation speed of the disc did not remain constant throughout the whole reading process. The drive seems to accelerate towards the outer tracks of the discs, in an effort to maintain synchronization and reading accuracy.

Writing Quality scans

We measured the PI/UncPI errors on the HD-BURN discs. The scans for the 1GB and 1.4GB discs are shown below:

- 1GB HD-BURN Disc

- 1.4GB HD-BURN Disc


13. DVD Recording Tests

Optorite DD0401 Dual DVD Recorder - Page 13

DVD Recording Tests

- Writing Performance

The Optorite DD0401 supports DVD-R/RW and DVD+R/RW writing. The maximum supported speed for DVD+R is 8x (4x~8x Z-CLV), 4x CLV for DVD-R, 4x CLV for DVD+RW and 2x CLV for DVD-RW media.

Currently, only a few 8x certified DVD+R media are available on the market. Optorite's suggested DVD media list for writing is presented on this page. The supported 8x DVD+R media came from Mitsubishi Chemicals, CMC Magnetics, Ricoh and Taiyo Yuden.

We used an 8x DVD+R disc from Mitsubishi Chemicals, in order to check the 8x writing strategy employed by the drive. The software we used is Nero CDSpeed, and its "create disc" function.

The Optorite DD0401 started writing at 3.99x, and kept this speed up until the 1.2 GB mark, whence it accelerated to 8x. The average writing speed was 6.85x.

 

 

 

 

DVD+RW

The media used for DVD+RW writing simulation came from Ricoh (4x).

DVD-R

- Burning Tests

We burned 4315MB of data on various DVD±R, DVD±RW media. The best recording times are illustrated in the following table. For comparison, we also include the writing times for the Philips DVDR824P and Plextor PX-708A drives:

The Optorite DD0401 drive needed 9:29min to write the 8x DVD+R disc (4-8x Z-CLV). The other drives were faster, offering 6x-8x Z-CLV writing. The remaining recording times are almost the same for all media formats due to the CLV writing strategy of the drives.

The following screen shot comes from Nero, after successful burning with Mitsubishi Chemicals 8x DVD+R, and 4x DVD+RW media. The amount of data burned was the same for all tests.

The Optorite DD0401 selects the maximum allowed recording speed according to the inserted blank DVD discs. In the following table you can see the maximum permitted writing speeds with various media.

Disc Label
Disc Information
Writing Speed
N-TECH 4x DVD-R
AN31
4x
N-TECH 4x DVD+R
MEDIA ID 001
4x
Hi-Space 4x DVD+R
MPOMEDIA 040
4x
Mitsubishi 4x DVD-R
MCC 01RG20
4x
Mitshubishi Kagaku 8x DVD+R
MCC03
8x
Ritek 4x DVD-R
RITEK G04
4x

Philips DVD+R

RICOHJPN R00
2.4x
Verbatim 4x DVD+R
MCC 002
8x
Mitsubishi 4x DVD+RW
MKM A02
4x
TDK 2x DVD-R
TDKG02000000
2x
TY 8x DVD+R
YUDEN000 T01
8x
Verbatim 2x DVD-RW
MCC 01RW11n9
2x
- DVD±RW Packet Writing

The Optorite DD0401 supports packet writing with DVD+RW and DVD-RW media. To test the performance of the DVD+RW format, we formatted some Ricoh 4x DVD+RW discs and started the drag'n drop process, using a 1GB file. With the background formatting in full progress, we noted the reading / writing performance.

For the DVD-RW format we used a 2x DVD-RW from MC. The performance of the drive is illustrated in the table below:

2x DVD-RW
4X DVD+RW
Read
1.46x
1.55x
Write
0.95x
1.05x

14. Writing Quality Tests - PI / PO Error Tests

Optorite DD0401 Dual DVD Recorder - Page 14

KProbe PI/PO quality results

In the following screenshots you can see the PI/PO scans for various 4x DVD+R and DVD+RW media, recorded with the Optorite DD0401 at the maximum allowable speed.

The software used for the measurements is the KProbe v1.1.26, and the reader is the LiteOn LDW-401S. The ECC setting was 8. The specific methodology is very dependent on the drive used as a reader, and the reliability of the PI/PO provided output is also not technically confirmed. As a result, we cannot safely come up with absolute results, but we are allowed to compare the behavior of the drive with various DVD recordable/rewritable media. The official DVD specifications demand that PI should be < 280/sec (PI<<280/sec good quality) and the PO should be zero.

The discs we used came from Mitsubishi Chemicals, Verbatim, Taiyo Yuden, Ritek, Hi-Space, N-Tech and Maxell. More information about each disc type is available at the bottom of the page.

Media
Code
N-TECH 4x DVD-R
AN31
N-TECH 4x DVD+R
MEDIA ID 001
Hi-Space 4x DVD+R
MPOMEDIA 040
Mitsubishi 4x DVD-R
MCC 01RG20
Mitshubishi Kagaku 8x DVD+R
MCC03
Ritek 4x DVD-R
RITEK G04
Verbatim 4x DVD+R
MCC 002
Mitsubishi 4x DVD+RW
MKM A02
Verbatim 2x DVD-RW
MCC 01RW11n9
TY 8x DVD+R
YUDEN000 T01

15. Conclusion

Optorite DD0401 Dual DVD Recorder - Page 15

Conclusion

Pros

Cons

  • 8x DVD+R writing
  • 4x DVD+RW/-R writing
  • 40/24/40 CD-RW
  • Includes HD-Burn, Burn-Proof
  • Very good CD and DVD seek times
  • Good CD-R/RW/DVD-ROM/DVD±R/RW reading speed
  • Excellent error correction with defective / scratched CD-R media with defects up to 1.5 mm
  • 40x max DAE
  • Good CD-R writing quality
  • Supports CD-Text (reading/writing)
  • Low C1/C2 error measurements
  • Low price
  • Problematic error correction performance with dual layer scratched DVD-ROM / DVD Video
  • Limited media support for 8x DVD+R writing
  • 2 MB buffer
  • Cannot backup protected discs (SaveDisc v2.x)
  • High 3T jitter

The Optorite DD0401 dual DVD Recorder presented some good features along with some not so good. The drive has performed within specifications, although at times it has been marginal. This is a drive that will do pretty much what it is meant to do but not a whole lot beyond that.

It performed admirably as a CD and DVD reader with very good overall seek times. The speeds supported are high and amongst the best available for both CD and DVD available from any recorder on the market at present. Video ripping was satisfactory average.

While the drive seems very capable of correcting most errors, (it proved very reliable reading all 5 check levels in the CD-Check Audio tests), it had problems correcting severe errors ( excessive size) TCD-721R. The drive also experienced problems with DVD errors, where it was unable to correct defects in the second layer and as with CD errors, this was primarily due to severe defects. It further created high 3T jitter leaving some doubt as to how reliably it can record. However the C1/C2 quality tests returned acceptable values.

The HD-Burn feature is useful for anyone who needs more capacity than that available on CD media but doesn't need the capacity available on DVD, or at least that's the explanation given by Sanyo for this new format. The problem is that writing can only be done with HD-Burn equipped DVD recorders and applies only to CD media, while any such written media can only be read by a HD-Burn compatible drive. In other words, anything you burn with HD-Burn will not be readable by almost all the drives in use at the moment.

The PI/PO quality tests while acceptable, were simply that. Many of the results are on the border, although they should have been much better. In particular, the PO measurements should not have yielded such high errors.

The buffer also could have been more than a low 2 Mbytes, especially considering that this is a DVD recorder.

On backups of protected discs that were tested, the drive appeared sluggish, while we should further mention that it could not backup SaveDisc protected discs. Audio CDs also presented problems, being unable to rip the first track of CDS200 protected CDs.

About the best feature of this drive is its price. For anyone wanting a cheap CD/DVD recorder witout expecting the performance and reliability of one of the more pricy recorders, this drive is ideal.

 



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