Turn off the Ad Banner  

To print: Select File and then Print from your browser's menu.

    -----------------------------------------------
This story was printed from CdrInfo.com,
located at http://www.cdrinfo.com.
-----------------------------------------------


Appeared on: Friday, April 23, 2004
Toshiba SD-R5272


1. Package - Installation

TOSHIBA SD-R5272 DVD±RW recorder - Page 1

 

Toshiba`s among the few companies that still produces DVD technology. The company has unveilled quality drives in the past, and currently, after quite some time of "inactivity", comes up with the new SD-R5272 dual format recorder. The drive is compatible with all current formats such as DVD-R/RW and +R/RW, CDs as well as DVD-RAM (read).

Features

The Toshiba drive features 8x DVD-/+R write, 4x DVD-/+RW write, 32x CD-R write, 16x CD-RW write US, 40x CD-ROM read, 24x CD-RW read, 12x DVD-ROM read and 2x DVD-RAM read. Buffer underrun protection is also supported.

Specifications
Host/Interface

ATAPI (E-IDE), PIO Mode 4, MW DMA mode 2, Ultra DMA/Ultra DMA33

Applicable Write Format

CD-R/-RW: Disc at once, Track at once, Session at once, Packet write

DVD-R: Disc at once, Incremental write

DVD-RW: Disc at once, Incremental write, Restricted overwrite

DVD+R: Sequential Write

DVD+RW: Sequential Write, Random Write

Applicable Write disc

CD-R/-RW, HS CD-RW& US CD-RW: CD-DA, CD+E(G), CD-MIDI, CD-TEXT, CD-ROM, CD-ROM XA, MIXED MODE CD, CD-I, CD-I Bridge (Photo-CD, Video-CD), Multi-session CD (Photo-CD, CD-EXTRA, Portfolio)

DVD-R: DVD-R (Ver 2.0 for General), 8X DVD-R Rev3.0

DVD-RW: (Ver 1.2 for General) 4X DVD-RW Rev 2.0

DVD+R: DVD+R (4.7GB, Ver 1.2)

DVD+RW: DVD+RW (4.7GB, Ver 1.2)

Applicable Formats - Read

DVD:DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-18), DVD-R (Ver. 2.01), DVD+R (4.7GB, Ver 1.11), DVD-RW (Ver. 1.1), DVD+RW (4.7GB, Ver 1.2), DVD-RAM (Ver 2.1)

CD: CD-DA, CD+(E)G, CD-MIDI, CD-TEXT, CD-ROM, CD-ROM XA, CD-I, MIXED MODE CD, CD-I Bridge (Photo-CD, Video-CD), Multi-session (Photo CD, CD-Extra, CD-R, CD-RW, Portfolio), CD-RW, CD-R

Data Disc Capacities

DVD-ROM: 4.377GB (DVD-5), 7.959GB (DVD-9), 8.754GB (DVD-10), 15.917GB (DVD-18)

DVD-R: (Ver 1) 3.679 GB

DVD-R: (Ver 2.0) 4.377 GB

DVD-RW: 4.377 GB

DVD-RAM: (Ver 2.1) 4.377 GB

CD: 656.5MB (mode 1), 748.8MB (mode 2)

Rotational Speed

DVD-ROM: (single layer) 7,580rpm (5.0 - 12X CAV)

DVD-ROM: (dual layer) 5,053rpm (3.3 - 8X CAV)

DVD-R, DVD+R: (read) 5,053 - 5,560rpm (4 - 8X PCAV)

DVD-RW, DVD+RW: (read) 3,790 - 5,560rpm (4 - 6X PCAV)

DVD-RAM: (Ver 2.1) (read) 1,400 - 3,300rpm (2X ZCLV)

DVD-R: (Ver 2.0) (Write) 1,100 - 2,780rpm (2X CLV), 2,200 - 5,560rpm (4X CLV), 4,100 - 6,800rpm (4/5/8X ZCLV)

DVD-R: (Ver 2.0) (Write) 550 - 1,390rpm (1X CLV), 1,100 - 2,780rpm (2X CLV), 2,200 - 5,560rpm (4X CLV)

DVD+R: (Write) 1,380 - 3,300rpm (2.4X CLV), 2,200 - 5,560rpm (4X CLV), 4,100 - 6,800rpm (4/5/8X ZCLV)

DVD+RW: (Write) 1,380 - 3,300rpm (2.4X CLV), 2,200 - 5,560rpm (4X CLV)

CD-ROM, CD-R: 8,561rpm (17.2 - 40X CAV)

CD-DA: Transfer 5,100rpm (10.3 - 24X CAV)

CD-DA, Video-CD: 1,200 - 2,000rpm (4 - 6X PCAV)

CD-RW: (read) 5,100rpm (10.3 - 24X CAV)

CD-R: (write) 850 - 1,980rpm (4X CLV), 2,550 - 5,940rpm (12X CLV), 3,400 - 5,940rpm (12, 16X ZCLV), 5,130 - 6,800rpm (12/16/20/24/32X ZCLV)

CD-RW: (write) 850 - 1,980rpm (4X CLV)

High Speed CD-RW: (Write) 850 - 1,980rpm (4X CLV), 2,125 - 4,950rpm (10X CLV)

Ultra Speed CD-RW: (Write) 3,400 - 5,940 rpm (12/16X ZCLV)

Transfer Rate

DVD: (Single) 6,760 - 16,224KB/second

DVD: (Dual) 4,432 - 10,816KB/second

DVD-R, DVD+R: 5,408 - 10,816KB/second

DVD-RW, DVD+RW: 5,408 - 8,112KB/second

DVD-RAM: 2,704KB/second

CD: 2,588 - 6,000KB/second (mode 1), 2,950 - 6,843KB/second (mode 2)

CD-RW: 1,294 - 3,000KB/second (mode 1), 1,475 - 3,422KB/second (mode 2)

Access time DVD: 130ms, CD: 110ms, DVD-RAM: 200ms
Buffer memory 2 MB with Buffer Underrun Protection
Audio output Digital and Analogue output
Weight 2.20 lbs. (1.0kg)
Dimensions 1.63" x 5.75" x 7.46" (41.5mm x 146mm x 189.5mm)

The drive uses a 2MB buffer memory store and supports RAW DAO 96 writing (CD). The drive does not support Mount Rainier.

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).

- The drive

The european retail package includes a safety instruction manual, a quick start guide, a CD which includes the product manual, FAQ/Glossary, DOS drivers, a second CD with Pinnacle Studio SE v.9 and Instant CD/DVD v.8, mounting screws, a blank Traxdata 8x DVD+R 4,7GB disc and a blank Verbatim 48x CD-R. Also there are the internal connection IDE and analogue audio cables as well as an advertising marker.

The drive's front panel's color is white in colour. On the tray from left to right we can see the following: Ultra Speed Compact disc Rewritable logo, DVD R/RW logo and RW DVD+ReWritable logo. Below and on the right hand side we have the power led, the eject button. and the emergency eject hole.

On the rear panel you can find the analogue and digital audio outputs (SPDIF), 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.

The PCB and chipset are manufactured by Toshiba.

- Installation

The device was connected to our test PC and identified as "TOSHIBA ODD-DVD SD-R5272" under WinXP. All tests were done with firmware revision v1030.

The following pages include test results for the Toshiba drive, compared with the NEC ND-2500A and TDK 880N drives which both have about the same specifications as those of the Toshiba.


2. Data CD Reading Tests

TOSHIBA SD-R5272 DVD±RW recorder - Page 2

Data CD Reading Tests

- Pressed CD results (Click for CDSpeed results)

From the graph above, we can see that the Toshiba drive was slightly faster among the three drives and it confirmed the manufacturer's stated speed specifications.

Although the reported seek times for Toshiba drive weren't the fastest for all modes, they are nevertheless quite good.
- CD-R results (Click for CDSpeed results)

We made a copy of the previous pressed CD in order to test the drive's behavior with CD-R media. While the average and end speeds were almost identical to those with pressed media, the start speed is a good deal slower.

Here, the random seek time is quite good, but the full seek time is a little dissapointing being a good 27ms slower than with the pressed disc.

- ReWritable Media (Click for CDSpeed results)

For the reading test we used 24x Ultra Speed rewritable media from Mitsubishi Chemicals.

The big difference here is due to the fact that the Toshiba drive supports US CD-RW reading up to 24x.


3. CD Error Correction Tests

TOSHIBA SD-R5272 DVD±RW recorder - Page 3

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: 1144745
Errors (Loudness) dB(A)
Num: 49727 Avg: -71.7 dB(A) Max: -11.6 dB(A)
Error Muting Samples
Num: 10326 Avg: 3.2 Samples Max: 411 Samples
Skips Samples
Num: 26 Avg: 6.0 Samples Max: 6 Samples
Total Test Result
64.4 points (out of 100.0 maximum)

The performance with this disc is quite good. The total error count is about average but the maximum loudness error level is very high at -11.6 dB(A). There are also a lot of muting sample errors and the number of skipped samples is also high. The total score could have been better.

- ABEX TCD-726

Errors total
Num: 7
Errors (Loudness) dB(A)
Num: 3 Avg: -87.9 dB(A) Max: -70.4 dB(A)
Error Muting Samples
Num: 0 Avg: 0.0 Samples Max: 0 Samples
Skips Samples
Num: 0 Avg: 0.0 Samples Max: 0 Samples
Total Test Result
94.4 points (out of 100.0 maximum)

The Abex TCD-726 test disc is a simple test for error correction and so it's only natural the Toshiba drive perform better than in the previous test. The total error count isn`t high, while there are no skips and any mutes. The total score of 94.4 out of 100 is good, but in general, most good drives record a score of 100 for this test.

- 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
Toshiba SD-R5272
5/5
5/5
5/5
3/5
0/5

The drive performed slightly better than average. It managed to playback 5 out of 5 attempts for the first three tracks and 3 out of 5 for the fourth track. It did not manage to play any attempts for the fifth track, but then only the best drives mange to read the fifth track.

- Summary

Test Disc
Reading Speed
Score
ABEX TCD-721R
Max
64.4
ABEX TCD-726
94.4
Average Score
79.4

The total average score for the drive is satisfactory.


4. DVD reading tests

TOSHIBA SD-R5272 DVD±RW recorder - Page 4

DVD reading tests

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

The Toshiba drive's reading speed is quite close to that of the other two drives, being slightly faster in all cases.

The seek times are very good, especially when compared to the other two drives.

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

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 outwards towards to the outer tracks for each layer.

Again, the Toshiba drive's reading speed with dual layer DVD is very good.

The seek times were once again the best among the three drives although the full seek is a little slow.

- 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 of the disc's second layer. The beginning of the second layer is located in the outer part of the disc, so the drive starts reading from the outer tracks inwards towards the inner tracks of the disc.

As can been seen in the following screenshot, the OTP dual layer DVD test disc produced similar speeds as with PTP media. The seek times are also around the same levels.

- DVD Ripping Tests

We measured the DVD-Video ripping speed of the Toshiba using the latest version of DVD Decrypter using a pressed DVD-Video movie.

The Toshiba drive was the fastest. The reported average transfer rate of 8181 kb/s is a very good.

- DVD Recordable / Rewritable reading Tests

The chart below shows the Nero CDSpeed average reading speed results with the following media:

Very good performance with the highest speed for all formats. It appears to be a very fast reader, especially with DVD±R media, since it supports the P-CAV strategy for the 8x read, rather that the usual 8x CAV apearing in other burners. In case of DVD±RW, the 6x P-CAV offers competitive average read speed.

-DVD-RAM

Toshiba supports reading of DVD-RAM media. The specifications for the drive are confirmed here by Nero CDSpeed. After the end of the test, the software reports that the drive read the DVD-RAM under CLV mode. The disc we used for this test is a Maxell 3x DVD-RAM Ver2.1. The disc was read at 2x CLV. However, the full seek time result is high.

 

 


5. DVD Error Correction Tests

TOSHIBA SD-R5272 DVD±RW recorder - Page 5

DVD Error Correction Tests

In the following tests we examined the DVD reading capabilities of Toshiba drive with scratched / defective DVD media. For the tests we used CDVD Benchmark and Nero CDSpeed. The testing 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 picture comes from the CDVD Benchmark v1.21 transfer rate test.

The drive read the contents of the 821 test disc, without reporting any reading errors. There are also very few speed fluctuations (random yellow dots), indicating how effortlessly the drive read this disc.

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 of the TDR-821, with the difference that there are no scratches on the surface but defective areas ranging in dimensions from 0.5 to 1.1 mm. There are also fingerprints with height between 65 and 75 micrometers.

The drive managed to read the defective area on the disc without any noteworthy problems. Again, there are no noticeable speed fluctuations.

- 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.

Once again the disc was read without reading errors.

ABEX TDR-845

This disc is a single sided, dual layer DVD-ROM disc with capacity of 8.5GB. The only difference between the TDR-845 and the TDR-841 is that the first includes both defective areas and fingerprints. The dimensions of the defective areas range from 0.5 to 1.1 mm and the fingerprints have height from 65 to 75 microns (micrometers).

The test finished successfully without reporting any errors. The results with all four discs is quite impressive and the drive appears to have no problems bypassing defects.

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 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 testing pictures and 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.

Although the drive performed well in the corresponding test with the single layer disc, it had to slow down twice.

ABEX TDV-545

The TDV-545 disc is based on the TDV-540 series. It is a single sided, dual layer Video/S-2 disc with a capacity of 8.5GB. The TDV-545 includes artificial black dots on the disc's surface, sized from 0.4 to 1.0 mm. It also has 65 - 75 micrometer high fingerprints.

This time no errors or speed drops were reported. This disc was not a problem for Toshiba drive.


6. Protected Disc Tests

TOSHIBA SD-R5272 DVD±RW recorder - Page 6

Protected Disc Tests
- Reading Tests

To create an image of the various protected titles onto a hard disk, we used CloneCD v.4.3.2.2 software and the appropriate settings, depending on the protection type of the inserted discs. Below the capabilities of the Nec drive are summarized, according to CloneCD software. As you can see the drive supports writing of CD+G under RAW DAO:

The game titles we used for each protection scheme are given 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 v.2

Toshiba managed to rip the contents of all test discs successfully and gave the fastest ripping values for all tested games.

- Writing Tests

The Toshiba drive supports the DAO-RAW writing mode. For checking the drive's EFM correction status, we used 3 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 CloneCD. Two different discs were created for each title; one with the "Amplify Weak Sectors" 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
Game Title
SD2 Build
Settings
Bypass EFM error ON
Bypass EFM error OFF
Toshiba SD-R5272
Max Payne
v2.51.020
Yes
Yes
Serious Sam - The Second Encounter v1.07
v.2.60.052
Yes
Yes
The Sims Unleashed
v.2.8
Yes
Yes
The Sims Superstar
v2.9
Yes
Yes
Fifa 2004
v3.1
Yes
Yes

Excellent behaviour. The drive managed to make working backups of all the game titles we tried.


7. DAE Tests

TOSHIBA SD-R5272 DVD±RW recorder - Page 7

DAE Tests

- Pressed and CDR AudioCD results

The Toshiba drive uses 24x CAV reading strategy for CD-DA. Below you can see the results from the CDSpeed transfer rate test with a pressed audio CD:

According to Nero CDSpeed, the average reading speed was 18.50x, while at the end of the reading procedure reached the 24.46x speed. The seek times are good.

 

 

 

We ripped the contents of the same audio disc to our hard disk, using the CDDAE software. The average ripping speed (burst mode) of 17.5x, was very low.

The same pressed audio disc was copied onto a CD-R and was read again with CDspeed.

Again, Toshiba returned the same times, being slower than the other two drives.

- Advanced DAE Quality

In the Nero CD Speed Advanced DAE test, the Toshiba drive returned an average speed of 17.41x, which is a good performance, and a quality score of 100. According to CDSpeed the drive can read Cd Text and Subchannel Data but this is not the case for Leadin and Leadout.

- Support of 90/99mins AudioCDs

The Toshiba drive managed successfully to rip and play the contents of the 99min test disc. With the 90min disc there were some audible clicks while playing back the last two songs.

- Reading/Ripping Protected AudioCDs

For the test procedure we used two audio discs with different audio protection schemes. We performed the tests for both recognition and ripping to the hard disk. The software used was Exact Audio Copy.

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

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

Key2Audio
CDS200
EAC
Toshiba SD-R 5272
Cannot recognize
OK
TDK 880N
OK
OK
NEC ND-2500A
OK
OK

The Toshiba drive played back successfully theCactus Data Shield 200 disc but failed with the Key2Audio protected disc.


8. CD Recording Tests

TOSHIBA SD-R5272 DVD±RW recorder - Page 8

CD Recording Tests

- CD-R Writing Tests

The Toshiba drive supports 4x, 12x, 16x, 32x writing speeds. Below you can see the CDSpeed writing simulation graph with Taiyo Yuden 32x CD-R media.

The simulation test under Nero CD Speed, confirmed the manufacturer's specifications for 32x recording (Z-CLV) although CDSpeed reports P-CAV.The average speed was 23.26x. Notice that the drive starts recording at 12x, making it slower than other 32x Z-CLV burners.

 

 

 

- Recording Times

We created an 80min data compilation with Nero Burning Rom and recorded it on a 700MB disc. The Toshiba drive needed 4:32 minutes to conclude the burning procedure.

Below we present the best writing times for the Toshiba drive at 4x, 12x, 16x, 32x with a Taiyo Yuden media.

In the following graph you can see the recording times with various media brands.

- CD-RW Writing Tests

The Toshiba drive supports 16x Z-CLV maximum rewriting speed, with Ultra Speed rewritable media. Below you can see the results from the CDSpeed writing simulation test with blank 24x US-RW media from Mitsubishi Chemicals.

The test once again confirmed the drive's specifications for 16x rewriting. The average speed at the end of the test was 15.76x. Again, Toshiba has chosen the Z-CLV writing strategy instead of the expected CLV for the 16x speed, resulting to slightly higher overall recording times.

 

 

 

We also used Nero Burning Rom software to burn 24x US-RW data media from Mitsubishi Chemicals again. The data compilation burnt onto the disc, had a size of 651 MB. The duration of the recording process was 5:11 minutes.

- 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 (412.822 KB) from Hard Disk (on the same PC as the recorder) to the formatted RW media through Windows explorer (drag and drop).

 
Operation
Duration
Average speed
Read
3:13 min
14.2X
Write
3:30 min
13.1X

- Other features

Overburning
Up to 94:57
CD text reading/writing
Yes


9. 3T Jitter Tests - Page 1

TOSHIBA SD-R5272 DVD±RW recorder - Page 9

Writing Quality Tests - 3T Jitter Tests

On an 80min 48X CD-R disc from Taiyo Yuden we burned the same AudioCD project at 4x, 12x, 16x and 32x. The 3T Pit & Land Jitter graphs are presented here.

- 3T Pit results

As we can easily conclude from the graphs shown above and below, the drive gives low jitter values for 12x, 16x, 32x speeds. At 4x, the jitter level is constantly above 35ns, the Red Book limit.

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

The average Pit jitter for recording speeds of 12x and over is acceptable, and very good for those below.

- 3T Land results

The land jitter levels illustrated in the graph above, are very good for all speeds except for 4x, as was the case with pit jitter.

The following average values graph confirms the very good burning quality of the Toshiba recorder.

Recording Speed
Average 3T Pit Jitter (ns)
Average 3T Land Jitter (ns)
> 35ns
Max 3T jitter values (ns)
4X
38.71
39.07
Yes
40 Pit, 40 Land
12x
31.63
31.46
No
35 Pit, 35 Land
16X
32.34
31.20
No
35 Pit, 34 Land
32X
30.95
31.22
No
35 Pit, 35 Land
- Summary

Toshiba is a very good recorder, at least with Taiyo Yuden media. Avoid using the 4x writing speed which had increased jitter levels. In the following page we test the drive's writing quality with other media brands.


10. 3T Jitter Tests - Page 2

TOSHIBA SD-R5272 DVD±RW recorder - Page 10

Writing Quality Tests - 3T Jitter Tests

The same Nero compilation used in the previous jitter tests was used once again, this time with media from different brands. The recording speed was the maximum in all cases. The following graphs indicate the 3T Pit & Land Jitter results.

- 3T Pit results

According to the results we took from the jitter measurements, the Toshiba drive performed extremely well with all media brands. The SmartBuy, Platinum, Philips, Primedisc and Verbatim media proved to be very good combinations with the Toshiba recorder.

The average 3T Jitter values for all manufacturers discs are illustrated in the following graph.

- 3T Land results

The jitter land values were almost at the same levels with this one of 3T Pit. Only PrimeDisc media exceeded the 35ns level at the very end.

Recording Speed
Average 3T Pit Jitter (ns)
Average 3T Land Jitter (ns)
> 35ns
Max 3T jitter values (ns)
Platinum 48x
26.78
26.29
No
30 Pit, 29 Land
Verbatim 48x
29.56
27.05
No
32 Pit, 29 Land
PrimeDisc 48x
31.20
32.59
Yes
34 Pit, 36 Land
Philips 52x
29.83
30.95
No
33 Pit, 34 Land
SmartBuy 52x
28.49
28.02
No
30 Pit, 29 Land
- Summary

The drive performed very well in the CD recording tests with all the media brands we tested. The writing quality is highl.

On the following page we check the C1 and C2 error rates for the same discs.


11. C1 / C2 Error Measurements

TOSHIBA SD-R5272 DVD±RW recorder - Page 11

Writing Quality Tests - C1 / C2 Error Measurements

The C1 / C2 error rate was measured for the recorded discs burned during the previous writing tests (jitter). The software used was UMDoctor Pro II, and the reader was the Optorite DD0401 drive.

 

  • Platinum 48x recorded at 32x

  • Philips 52x recorded at 32x

Below we present information regarding the CD-R media used in this test.

Disc
ID Code
Capacity
Taiyo Yuden 48X
TaiyoYuden 97m24s01f
79:59:72
Platinum 48x
Unknown 97m17s06f
79:59:74
Verbatim 48x
Mitsubishi 97m34s23f
79:59:73
PrimeDisc 48x
Ritek 97m15s17f
79:59:70
SmartBuy 52X
Prodisc 97m32s19f
79:59:71
Philips 52X
Ritek 97m15s17f
79:59:70
- Summary

According to our measurement, the drive's CD writing quality is very good with all of our media brands we tested. The C1 levels are all low, while there were no C2 errors reported.


12. DVD Recording Tests

TOSHIBA SD-R5272 DVD±RW recorder - Page 12

DVD Recording Tests

- Writing Performance

The Toshiba drive supports DVD-R/RW and DVD+R/RW writing. The maximum supported speed for DVD+R and DVD-R is 8x Z-CLV and 4x CLV for DVD+/-RW media.

8x DVD+R

An 8x DVD+R disc from Mitsubishi Kagaku was used to check the 8x writing strategy of the drive. The software used was Nero CDSpeed, with its "create disc" function.

The drive started writing at 4.02x, and ended at 8.06x with an average speed of 6.44x. The writing strategy here is different than what we have experienced with other 8x Z-CLV burners. The drive jumps to 5x at the 0.2GB mark and keeps this speed until the 2.2GB mark, before reaching the maximum 8x. This gives the drive a lower average speed (6.44x), compared to other drives (~6.8x).

Verbatim 8x DVD-R

The simulation with the 8x DVD-R was similar to that of the 8x DVD+R media. In this test we used Verbatim media.

Mitsubishi Chemicals 4x DVD+RW

Mitsubishi Kagaku 4x DVD-RW

- Burning Tests

The best recording times are illustrated in the following table. The values were taken after burning 4315MB of data on various DVD±R, DVD±RW media, using the maximum allowed writing speed for each disc. For comparison, we also include the writing times for the TDK 880N and Nec ND-2500A.

With both plus and minus media, the Toshiba was marginally slower than the the other two drives, but the times are nonetheless good.

The table below presents the writing speeds, media name and media code for the various discs used.
Media
Code
Speed
CMC Magnetics 8x DVD+R
CMC MAG F01
4x
Philips 8x DVD+R
PHILIPS C08
4x
Mitsubishi Kagaku 8x DVD+R
MCC 003
8x
CMC Magnetics 4x DVD+R
CMC MAG F01
4x
Maxell 4x DVD+R
YUDEN000T01
8x
Taiyo Yuden 4x DVD-R
TYG01
8x
Mitsubishi Chemicals 4x DVD-R
MCC 01RG20
4x
CMC Magnetics 8x DVD-R
CMC MAG AE1
8x
Verbatim 8x DVD-R
MCC 02RG20
8x
MAM 4x DVD-R
Mitsui MCI4XG01
4x
Maxell 4x DVD-R
TYG01
8x
Mitsubishi Kagaku 4x DVD+RW
MKM A02
4x
Maxell 4x DVD+RW
PHILIPS 041
4x
JVC 4x DVD-RW
JVC0VictorD7
4x
Mitsubishi Kagaku 4x DVD-RW
MCC 01RW4X
4x

- Packet Writing Tests

For this test we copied a 403 MB file (412.822 KB) from the hard disk (on the same PC as the recorder) to the formatted RW media through Windows explorer (drag and drop).

DVD-RW
Duration
Average speed
Read
2:35 min
1.9X
Write
1:21 min
3.77X

DVD+RW
Duration
Average speed
Read
2:41 min
1.89X
Write
1:18 min
3.92X

13. KProbe PI/PO quality tests

TOSHIBA SD-R5272 DVD±RW recorder - Page 13

PI/PO quality results

The following screenshots present the PI/PO results for various DVD-/+R and DVD-/+RW media, recorded with the Toshiba SD-R 5272 at the maximum allowed speed.

The software used for the measurements was KProbe v1.1.28, the ECC was set to 8 and the reading drive was the LiteOn LDW-811S. The specific methodology is very dependable on the drive used as a reader, while the reliability of the PI/PO provided output is not also technically confirmed. Thus as a result, we cannot safely come up with conclusive results, although we do make a comparison of the drive's behavior when using various DVD recordable/rewritable media.

The recording discs used are presented below, coming with details about each disc type.

Unable for reading, even in the same drive.

 

Media
Code
CMC Magnetics 8x DVD+R
CMC MAG F01
Philips 8x DVD+R
PHILIPS C08
Mitsubishi Kagaku 8x DVD+R
MCC 003
CMC Magnetics 4x DVD+R
CMC MAG F01
Maxell 4x DVD+R
YUDEN000T01
Taiyo Yuden 4x DVD-R
TYG01
Mitsubishi Chemicals 4x DVD-R
MCC 01RG20
CMC Magnetics 8x DVD-R
CMC MAG AE1
Mitsubishi Kagaku & Verbatim 8x DVD-R
MCC 02RG20
MAM 4x DVD-R
Mitsui MCI4XG01
Maxell 4x DVD-R
TYG01
Mitsubishi Kagaku 4x DVD+RW
MKM A02
Maxell 4x DVD+RW
PHILIPS 041
JVC 4x DVD-RW
JVC0VictorD7
Mitsubishi Kagaku 4x DVD-RW
MCC 01RW4X

The drive reported good writing quality with the most media we tested. However we experienced a few cases where the PI/PO values were slightly high.


14. Conclusion

TOSHIBA SD-R5272 DVD±RW recorder - Page 14

Conclusion

Pros

Cons

  • 8x DVD+R/-R writing
  • 4x DVD+RW/-RW writing
  • DVD-RAM reading
  • 32x CD-R recording
  • Fast DVD-Video ripping
  • Very good CD writing quality
  • Good DVD writing quality
  • CD/DVD compatibility
  • Working backups of protected CDs
  • Overburning
  • Very well priced
  • CD-RW reading could be faster
  • Doesn't support Key2Audio protected disc.
  • 24x DAE could be higher
  • High seek times with DVD-RAM

The drive's CD reading ability is good with relatively low seek times. The CD error correction is satisfactory but we would like it to be better.

As for DVD reading, the Toshiba drive was fast with both recordable and pressed media. The seek times were rather low. The drive's DVD error correction ability is excellent. Only the ABEX TDV-541 disc presented some minor problems, where the drive had to lower speed in order to read the defective areas, otherwise, it managed to playback all of our test discs without reporting any errors.

The drive managed to make working backups of protected CDs, having fast ripping times with all game types we tried.

According to the DAE test, the drive had slow speed while it was also slow for on the flay copying. The drive supports the Cactus Data Shield 200 protection scheme. With the Key2Audio protected disc, the drive could not recognize the disc and of course rip or play the contents. SD-S5272 reported some minor problems when it came to playing the 90 minute AudioCDs. This wasn't the case with the 99min CD.

In the CD recording tests, the Toshiba drive performed very well. The supported 32x maximum writing speed is high enough for a DVD burner. However we would prefer to see the writing speed for CD-RW media to be 24x rather than 16x. Also, the CD writing quality was high, with all media brands we used. From our tests, we would recommend that it would be better to avoid recording at 4x speed, as at this speed the drive did not return the best results.

In the DVD recording tests, the drive performed admirably with high compatibility with all media formats, except with MAM media where it was impossible to read it, even with the Toshiba drive itself. Also, it recorded at 8x speed with many DVD+/-R brands which supported 1-4x writing. The PI/PO levels were low, in most cases. This is a strong point of the Toshiba SD-R5272.

Concluding, we can say that the drive had very good performance and it will prove to be a very competitive drive. Toshiba has done a very good job here and we welcome this effort. With an approximatelly €100 price tag, the SD-R5272 gained our respect and deserves the Editor's Choice Award.



Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2014 - All rights reserved -
Privacy policy - Contact Us .