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Lite-On SHW-1635S review
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Posted by Tor Magne
Posted on 05/11/05 15:08
Number of views 10733
Menu
 Conclusion
 Introduction and package
 Drive features and program bundle
 Reading performance
 CD-R/RW Writing performance and quality
 DVD-Writing performance and DVD+R Writing quality
 DVD-R writing quality and DVD+/-RW writing performance
 DVD+R DL and DVD-R DL writing performance
 Advanced tests
Text Size  Text Size
DVD R writing quality and DVD+/ RW writing performance
 

DVD-R media compatibility and write quality:


Brand:

BenQ - thanks to Daxon for providing it.

Manufacturer:

Daxon

Code:

DAXON016S

Disc Type:

DVD-R

Capacity:

4489MB

Certified Speed:

16x

Write Speed:

16x

Write Time:

5m:56s

PI-8 errors Average/Sec:

32.99

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

0.10

There is a noticeable amount of PI errors at the last half of the disc, so it looks like Lite-On needs to work on the writing strategy for this media. The disc does still comply to the specifications and did read back at full speed with no problems.


Brand:

Traxdata - thanks to Conrexx for providing this media

Manufacturer:

Ritek

Code:

RitekF1

Disc Type:

DVD-R

Capacity:

4489MB

Certified Speed:

16x

Write Speed:

16x

Write Time:

6m:11s

PI-8 errors Average/Sec:

46.05

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

0.10

Again, it looks like Lite-On needs to work on optimizing the writing strategy, the error levels exceeds the allowed limit and we could not recommend this media.



Brand:

Verbatim Data Life Plus

Manufacturer:

CMC Magnetics using Mitsubishi technology

Code:

MCC03RG20

Disc Type:

DVD-R

Capacity:

4489MB

Certified Speed:

16x

Write Speed:

16x

Write Time:

5m:56s

PI-8 errors Average/Sec:

6.92

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

0.02

A bit more errors towards the end, but not enough to cause any problems. Recommended media.


Brand:

Miflop Extreme - thanks to Miflop media for providing it.

Manufacturer:

Taiyo Yuden

Code:

TYG03

Disc Type:

DVD-R

Capacity:

4489MB

Certified Speed:

16x

Write Speed:

16x

Write Time:

6m:10s

PI-8 errors Average/Sec:

4.25

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

0.01

A very good result with this media, highly recommended.


Brand:

Unbranded silver media distributed by e-net distribution.

Manufacturer:

CMC Magnetics / TDK

Code:

TTH02

Disc Type:

DVD-R

Capacity:

4489MB

Certified Speed:

16x

Write Speed:

16x

Write Time:

5m:57s

PI-8 errors Average/Sec:

2.38

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

0.01

A surprisingly good result with this media, we have no complaints at all!


Brand:

ePro

Manufacturer:

Prodisc

Code:

Prodisc.F02

Disc Type:

DVD-R

Capacity:

4489MB

Certified Speed:

16x

Write Speed:

16x

Write Time:

5m:56s

PI-8 errors Average/Sec:

2.85

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

0.07

Another very good result and we have no problems recommending this media.


Brand:

Acro Circle - thanks to Optodisc USA for providing this media.

Manufacturer:

Optodisc

Code:

OptodiscR016

Disc Type:

DVD-R

Capacity:

4489MB

Certified Speed:

16x

Write Speed:

16x

Write Time:

6m:07s

PI-8 errors Average/Sec:

3.72

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

0.02

Another surprisingly good result, but keep in mind that this Optodisc media appears to be of better quality than most Optodisc media available on the market.



Brand:

Emgeton - thanks to Bell technology for providing this media

Manufacturer:

Infomedia

Code:

Infomedia.R20

Disc Type:

DVD-R

Capacity:

4489MB

Certified Speed:

8x

Write Speed:

8x

Write Time:

8m:37s

PI-8 errors Average/Sec:

5.65

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

0.03

This pretty rare media works very well with this drive.


Brand:

RiData - thanks to Advanced media USA for sending this media

Manufacturer:

Ritek

Code:

RITEKG05

Disc Type:

DVD-R

Capacity:

4489MB

Certified Speed:

8x

Write Speed:

8x

Write Time:

8m:47s

PI-8 errors Average/Sec:

0.02

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

1.00

The overall PIF error level is too high for our liking; we did try two discs with the same result so it looks like Lite-On should look into improving the writing strategy for this media. The reading curve is still perfect though.


Brand:

MiFlop Extreme - thanks to MiFlop for providing it.

Manufacturer:

Taiyo Yuden

Code:

TYG02

Disc Type:

DVD-R

Capacity:

4489MB

Certified Speed:

8x

Write Speed:

8x

Write Time:

8m:41s

PI-8 errors Average/Sec:

3.94

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

0.01

Excellent - as expected with Taiyo Yuden. Highly recommended media.



Brand:

Datawrite silver printable - thanks to E-net distribution for providing this media.

Manufacturer:

Prodisc

Code:

ProdiscF01

Disc Type:

DVD-R

Capacity:

4489MB

Certified Speed:

8x

Write Speed:

8x

Write Time:

8m:45s

PI-8 errors Average/Sec:

7.00

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

0.17

A bit too many PIF spikes near the end to be called perfect, but there is no problems with reading back the disc. In practical use there will most likely not be any issues. 


Brand:

Acro Circle - thanks to Optodisc USA for providing it.

Manufacturer:

Optodisc

Code:

OPTODISCR008

Disc Type:

DVD-R

Capacity:

4489MB

Certified Speed:

8x

Write Speed:

8x

Write Time:

9m:01s

PI-8 errors Average/Sec:

11.31

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

0.07

Another acceptable result and the disc is fully readable with no slowdowns. Notice that this Optodisc media is probably of higher quality than the average Optodisc media on the market.


Brand:

Datawrite Titanium - thanks to E-net distribution for providing this media

Manufacturer:

CMC Magnetics/TDK

Code:

TTG02

Disc Type:

DVD-R

Capacity:

4489MB

Certified Speed:

8x

Write Speed:

8x

Write Time:

8m:21s

PI-8 errors Average/Sec:

1.70

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

0.01

It can't get much better than this, highly recommended media!



Brand:

Princo

Manufacturer:

Princo

Code:

PRINCO8X02

Disc Type:

DVD-R

Capacity:

4489MB

Certified Speed:

8x

Write Speed:

8x

Write Time:

8m:41s

PI-8 errors Average/Sec:

58.34

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

0.16

With Princo you know what you get at least; some real garbage media. Don't buy Princo, not even if they throw it after you - as you will most likely end up with unreadable discs, which is not worth it regardless of media price.



Brand:

Tuffdisc - thanks to E-Net distribution for providing this media.

Manufacturer:

CMC Magnetics

Code:

CMC.MAG.AE1

Disc Type:

DVD-R

Capacity:

4489MB

Certified Speed:

8x

Write Speed:

8x

Write Time:

8m:25s

PI-8 errors Average/Sec:

3.73

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

0.03

No problems with this media either.

Overall thoughts: With 8x media the Lite-On SHW-1635S is very good and even less known media works very well. It do also work well with many 16x media types, but there is still some work to do before it could match the writing quality of manufacturers like BenQ and NEC at 16x. But having that said we could see a clear improvement from previous Lite-On drives, which is a very good sign, and as usual with Lite-On drives the media compatibility is very good - only one disc was not written at certified speed.

Re-Writing data:

The Lite-On SHW-1635S supports rewriting DVD-RW at 6x and DVD+RW at 8x speed; let us write two discs in Nero CD/DVD speed and Nero Burning ROM to see how fast it is.

Here is the writing result for writing the 6x DVD-RW disc:


 

Lite-On SHW-1635S uses Z-CLV writing technology to write the DVD-RW disc at 6x. Total recording time is around 10 minutes and 30 seconds.

And here is the result with 8x DVD+RW writing:

Lite-On SHW-1635S uses Z-CLV writing technology to write the DVD+RW disc at 8x. Total recording time is about 7 minutes and 30 seconds.

Writing Quality with DVD Re-Writable discs:

Due to requests from our readers we will add a few write quality tests with ReWritable media. Settings and testing procedures are the same as used earlier in this review so you may want to go back and read them if unsure.

DVD+ReWritable media:


Brand:

Unbranded - thanks to BenQ for providing this media.

Manufacturer:

Ritek using Ricoh technology.

Code:

RICOHJPNW21

Disc Type:

DVD+RW

Capacity:

4483MB

Certified Speed:

8x

Write Speed:

8x

Write Time:

7m:27s

PI-8 errors Average/Sec:

462.30

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

4.37

Well, to be honest, the writing quality is very bad. The PIF level is still not high enough to make the disc unreadable though. But overall very disappointing and Lite-On should look into this issue. It may be worth mentioning that this disc is used in other reviews before this review, we full erased the disc before we wrote to it.


Brand:

Traxdata

Manufacturer:

Ritek

Code:

RITEK008

Disc Type:

DVD+RW

Capacity:

4483MB

Certified Speed:

8x

Write Speed:

8x

Write Time:

7m:31s

PI-8 errors Average/Sec:

567.50

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

193.20

The quality of the written disc is so bad that the Lite-On SOHW-1693S freaked totally out when scanning the disc! And sure enough - the disc is unreadable. This disc is not previously used in other reviews.


Brand:

Unbranded MKM - thanks to LG Korea for providing this media.

Manufacturer:

Mitsubishi Kagaku Media

Code:

MKM.A03

Disc Type:

DVD+RW

Capacity:

4483MB

Certified Speed:

8x

Write Speed:

8x

Write Time:

7m:31s

PI-8 errors Average/Sec:

345.20

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

4.22

Another very poor result and Lite-On should really look into improving the writing quality for this media. This disc is previously used in other reviews and full erased for this review.

DVD-ReWritable media:


Brand:

Mitsubishi - thanks to Verbatim UK for providing this media.

Manufacturer:

Mitsubishi

Code:

MCC01RW6X01

Disc Type:

DVD-RW

Capacity:

4489MB

Certified Speed:

6x

Write Speed:

6x

Write Time:

10m:31s

PI-8 errors Average/Sec:

85.32

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

12.13

Again the Lite-On SHW-1635S gave back a very poor result. The disc is not used in other reviews.


 

Brand:

Traxdata - thanks to Conrexx for providing this media.

Manufacturer:

Ritek

Code:

RITEKW06

Disc Type:

DVD-RW

Capacity:

4489MB

Certified Speed:

6x

Write Speed:

6x

Write Time:

10m:35s

PI-8 errors Average/Sec:

28.56

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

0.19

The best RW result we got, but it's still not very good. We have seen better results with several other writers, so Lite-On have some work to do. This disc is not used in other reviews.

To sum it up: The DVD+/-RW writing quality is horrible, Lite-On clearly have some work to do here. We tested several discs as well as scanning the discs in several drives and the results was always the same - very poor.

But let us now look at another aspect of this drive; double layer DVD+R and dual layer DVD-R writing…
DVD-Writing performance and DVD+R Writing quality
DVD+R DL and DVD-R DL writing performance
Want to submit your own review? Click here
Posted by Scour on Saturday 05 November 2005 20:27
Good review with a good drive :)

I´m surprised about the improving from older 16x Liteon to the newer ones.

But what in the hell Liteon think when tey optimizing the RW-strageties?
Posted by CyberMan969 on Monday 26 December 2005 01:08
Great review. I have this drive and the latest firmware YS0V is really good especially with cheap media. Tried it so far MCC 004, PRODISC-R04-04, DVD+Rs and TTG02 DVD-Rs and it achieved constant scores of 90 to 95 in Nero CD-DVD Speeds. Lead-in is written much faster too, with TTG02 it does that in just 30 sec, with the other ones I tested in 41 sec. Overall, Liteon managed to tweak the firmware, if you own this drive you have to flash to YS0V!
:X
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