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Posted by Tor Magne
Posted on 27/04/04 22:47
Number of views 6621
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ReWriting performance
 

The Lite-On SOHW-812S supports writing Ultra-Speed CD-RW discs at 24x speed. It supports writing DVD+RW discs at 4x and DVD-RW discs at 4x speed. Unfortunately we did not have any 4x DVD-RW discs available for this review.

Re-Writing data:


For this test we set up a new compilation containing 650Mb of data in Nero Burning ROM. We used the DAO (Disc At Once) writing method. In the screenshot below you can see that the burn process completed successfully.

 

The Lite-On SOHW-812S used 3 minutes and 58 seconds for writing the disc at 24X, let us compare this to some other writers; The Plextor PX-708A used 3 minutes and 39 seconds to write the disc and the NU DDW-082 used 3 minutes and 37 seconds to write the disc. This makes the Lite-On SOHW-812S the slowest drive out of these.

And here is the writing time for writing 4.4Gb of data to a 2X Memorex DVD-RW disc:

 

The drive used 29 minutes and 51 seconds to write the disc at 2X. Compared to the NEC ND-2500A (used 28 minutes and 31 seconds to write the disc) and the NU DDW-082 (used 28 minutes and 46 seconds to write the disc). This makes it the slowest drive again.

And finally here is the writing time for writing 4.4Gb of data to a Ricoh 4X DVD+RW disc:

 

The Lite-On SOHW-812S used 14 minutes and 9 seconds to write the disc, as a comparison the NU DDW-082 used 14 minutes and 34 seconds and the NEC ND-2500A used 13 minutes and 52 seconds. This put the Lite-On SOHW-812S between the two other drives.

CD-RW Packet writing:

Now it's time to take a look at the packet writing performance of the Lite-On SOHW-812S. We used Ahead InCD to write 401 MB (421 003 264 bytes) data to the disc.

Packet
Writing

DLA
Formatting
700MB

DLA
Copying
400MB

Average
Write
Speed

Plextor
PX-708A

9m:1s

2m:28s

18.96x

Mediagear /
BTC DRW1004

10m:28s

2m:29s

18.84x

NEC
ND-2500A

8m:55s

3m:27s

9.14x

Lite-On
LDW-811S

8m:4s

2m:29s

18.84x

Packet
Writing

InCD
Formatting
700MB

InCD
Copying
400MB

Average
Write
Speed

Pioneer
DVR-107D

4m:33s

2m:38s

17.76x

NU
DDW-082

4m:1s

2m:29s

18.84x

Lite-ON
SOHW-812S

6m:30s

2m:34s

18.23x

The drive did well enough and the average speed is right where we expected.

DVD-RW/DVD+RW packet writing tests:

We used Ahead InCD to format and write 2Gb (2 217 820 160 bytes) data to the disc.

DVD-RW

Quick
Formatting
DVD-RW

Writing
2.0Gb

Average
write speed

Plextor
PX-708A

0m:21s

13m:15s

2.01x

Mediagear /
BTC DRW1004IM

0m:26s

13m:14s

2.02x

NEC
ND-2500A

0m:20s

13m:25s

1.99x

Lite-On
LDW-811S

0m:22s

13m:15s

2.01x

Pioneer
DVR-107D

0m:17s

13m:20s

2.00x

NU
DDW-082

0m:21s

14m:00s

1.91x

Lite-On
SOHW-812S

2m:14s

13m:30s

1.98x

DVD+RW

Quick
Formatting
DVD+RW

Writing
 2.0Gb

Average
write speed

Plextor
PX-708A

0m:8s

6m:43s

3.97x

Mediagear /
BTC DRW1004IM

0m:4s

6m:43s

3.97x

NEC
ND-2500A

0m:6s

6m:36s

4.04x

Lite-On
LDW-811S

0m:11s

6m:40s

4.00x

Pioneer
DVR-107D

0m:19s

6m:43s

3.97x

NU
DDW-082

0m:7s

6m:44s

3.97x

Lite-On
SOHW-812S

3m:9s

7m:11s

3.72x

It was slightly slower than expected for DVD+RW packet writing, but not much and hardly noticeable in real use. The reason for the increased formatting time is probably due to a change in InCD.

Writing Quality with Re-Writable discs:


Due to request from our readers we will add a few write quality tests with Re-Writable media. Settings and testing procedures is the same as used earlier in this review so you may want to go back and read them if unsure. All discs used for these tests have been written to before, but none have been written to more than 25 times.

CD-ReWritable media:

 

Brand:

Verbatim Data Life Plus

Manufacturer:

CMC Magnetics, but with Mitsubishi dye and ATIP

Code:

97m34s24f

Disc Type:

US CD-RW

Recording Layer:

Dye Type 4: Long Strategy (Phase Change)

Capacity:

79:59.74 (703MB)

Certified Speed:

24x

Write Speed:

24x

Write Time:

4m:13s

C1 Average/Sec:

294.70

C2 Average/Sec:

0.00

Compared to the results we have had with earlier Lite-On drives this result is pretty bad. Room for improvement! On the other side; there were no C2 errors, which is good.

Brand:

That's Write

Manufacturer:

Plasmon data systems

Code:

97m27s12f

Disc Type:

US CD-RW

Recording Layer:

Dye Type 2: Long Strategy (Phase Change)

Capacity:

74:41.00 (656MB)

Certified Speed:

24x

Write Speed:

24x

Write Time:

3m:58s

C1 Average/Sec:

263.80

C2 Average/Sec:

0.00

Low quality discs, but the result is still just as good as the Mitsubishi disc. More room for improvement.

DVD+ReWritable media:


 

Brand:

SKS Elise

Manufacturer:

Ricoh (by Ritek)

Code:

RICOHJPNW11

Disc Type:

DVD+RW

Capacity:

4483MB

Certified Speed:

4x

Write Speed:

4x

Write Time:

14m:8s

PI-8 errors Average/Sec:

4.048

PI-8 uncorrectable errors(PO) Avg/Sec:

0.760

We did try with another brand new disc and after rewriting it twice we got the same result. The reading curve shows that the results are not as good as it should have been.


 

Brand:

BenQ

Manufacturer:

Philips

Code:

PHILIPS 041

Disc Type:

DVD+RW

Capacity:

4483MB

Certified Speed:

4x

Write Speed:

4x

Write Time:

14m:11s

PI-8 errors Average/Sec:

2.784

PI-8 uncorrectable errors(PO) Avg/Sec:

0.711

The best result we got with this drive. Highly recommended media.


 

Brand:

Fortis

Manufacturer:

Nanya

Code:

NANYA.DRW

Disc Type:

DVD+RW

Capacity:

4483MB

Certified Speed:

4x

Write Speed:

4x

Write Time:

14m:6s

PI-8 errors Average/Sec:

4.088

PI-8 uncorrectable errors(PO) Avg/Sec:

1.336

Still not perfect reading curve, but acceptable.


 

Brand:

Verbatim DataLifePlus

Manufacturer:

Mitsubishi Kagaku Media

Code:

MKM A02

Disc Type:

DVD+RW

Capacity:

4483MB

Certified Speed:

4x

Write Speed:

4x

Write Time:

14m:7s

PI-8 errors Average/Sec:

2.648

PI-8 uncorrectable errors(PO) Avg/Sec:

1.290

Not as good as expected, there are some reading problems.

DVD-ReWritable media:


 

Brand:

Memorex

Manufacturer:

TDK

Code:

TDK502sakuM3

Disc Type:

DVD-RW

Capacity:

4489MB

Certified Speed:

2x

Write Speed:

2x

Write Time:

29m:41s

PI-8 errors Average/Sec:

12.552

PI-8 uncorrectable errors(PO) Avg/Sec:

3.446

AS we could see the result is not good at all and the disc is completely unreadable. We did try a new disc and after a few rewrites the result were this bad again. Room for improvement Lite-On!


 

Brand:

Verbatim Data Life Plus

Manufacturer:

Mitsubishi (Real - Made in Singapore)

Code:

MCC01RW11n9

Disc Type:

DVD-RW

Capacity:

4489MB

Certified Speed:

2x

Write Speed:

2x

Write Time:

2m:47s

PI-8 errors Average/Sec:

2.101

PI-8 uncorrectable errors(PO) Avg/Sec:

0.847

A slowdown at the end, but nothing to complain about. Highly recommended.

Brand:

Princo

Manufacturer:

Princo

Code:

PRINCO

Disc Type:

DVD-RW

Capacity:

4489MB

Certified Speed:

2x

Write Speed:

2

Write Time:

29m:49s

PI-8 errors Average/Sec:

-

PI-8 uncorrectable errors(PO) Avg/Sec:

-

The drive wrote the disc but no drives were able to recognize the disc afterwards.

To sum it up: Overall we are not too happy with the Rewriting quality of the Lite-On SOHW-812S and it gets a minus in our book for that. Speed wise it's a bit slower than most other drives, but nothing worth complaining about.

Before we round off this review, let us run the drive through some advanced tests at next page…

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