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Lite-ON 24/10/40X USB 2.0
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Posted by Robin van Lieshout
Posted on 21/05/02 11:47
Number of views 7779
Menu
 Conclusion
 Introduction
 The package
 Specifications
 Data reading tests
 Music reading tests
 Reading scratched discs
 Writing tests
 Protected data test
 CD-RW tests
 Media compatibility
 Special CD-R disc tests
 General usage
Text Size  Text Size
Data reading tests
 

Data reading tests:

The specifications of the drive clearly state that the maximum read speed is 40X. Let us see if it is really able to reach this speed. We will also compare it to other 40X readers. The disc we used is the Plextools installation disc, which is exactly 74minutes(333.000 sectors) long. We used Nero CD-Speed to do the tests and ran the tests several times to make sure that the results were accurate. Here we will test:

  • Reading from the original Plextools disc.
  • Reading from a CD-R copy of the Plextools disc.
  • Reading from a CD-RW copy of the plextools disc.
Reading from the original pressed disc:

When reading from the original plextools disc we got this reading curve from Nero CD-Speed.



The green line indicates the read speed. The yellow line indicates the rotation speed (rpm) that the disc have.

The drive was able to reach the rated speed and even beating it with a very small margin. The average read speed is 30,63X. The seek times are pretty average for the drive. The drive will do well as a standard data reader. Let us see how this compares to other drives with similar specifications:




Original
Discs

 Average 
Reading
Speed

Start
 Reading 
Speed

End
 Reading 
Speed

Seek
Times
 Random 

Seek
 Times 
1/3

Seek
 Times 
Full

Plextor
 PX-W2410A 

32,01X

19,01X

42,17X

160ms

154ms

472ms

Lite-On
LTR-24102B

30,94X

18,37X

40,78X

86ms

99ms

171ms

Lite-On
LTR-32123S

31,75X

19,02X

41,65X

94ms

103ms

168ms

Waitec
MEGALUS

30,79X

17,98X

40,71X

152ms

157ms

275ms

Mitsumi
CR-480ATE

30,42X

18,00X

40,11X

93ms

97ms

132ms

Lite-On

LXR-24101A

30,63X

18,35X

40,26X

100ms

103ms

169ms

The grey area's indicate the highest speed / best time


The drive performed around average in this test compared to the other drives.

The CPU usage was also pretty average and not higher than when using a standard internal CD-RW drive.


Reading from a CD-R disc:

A copy was taken of the original Plextools disc. We used CloneCD to copy the disc, and the CD-R disc we used was Mitsui Gold 74min 16X certified (written at 16X using a Lite-On LTR-24102B). The Mitsui Gold disc was picked since it's known for its outstanding quality, we would like to thank the person that was kind enough to supply us with the Mitsui gold discs since Mitsui discs is impossible to get in Norway. You know who you are and we can only say thank you for very much for helping us and supporting us. Here is this manufacturer information:

  • ATIP: 97m 27s 56f
  • Disc Manufacturer: Mitsui Toatsu Chemicals, Inc.
  • Reflective layer: Dye (Short strategy; e.g. Phthalocyanine)
  • Media type: CD-Recordable
  • Recording Speeds: min. unknown - max. unknown
  • Nominal Capacity: 650.85MB (74m 05s 11f / LBA: 333236)
Here is the reading curve that Nero CD-Speed gives us.



The green line indicates the read speed. The yellow line indicates the rotation speed (rpm) that the disc have.

With a CD-R disc the drive was still able to reach the rated speed. Both the read speed and seek times was marginally better than with the original disc. Let us again see how well this compares to other similar drives:







CD-R
Discs

 Average 
Reading
Speed

Start
 Reading 
Speed

End
 Reading 
Speed

Seek
Times
 Random 

Seek
 Times 
1/3

Seek
 Times 
Full

Waitec
MEGALUS

30,49X

18,27X

40,07X

121ms

133ms

252ms

Mitsumi
 CR-480ATE 

29,99X

17,98X

39,44X

91ms

96ms

127ms

Lite-On
LTR-24102B

30,80X

17,95X

40,77X

141ms

148ms

258ms

Lite-On
LTR-32123S

32,21X

19,05X

42,07X

92ms

105ms

243ms

Lite-On

LXR-24102A 

31,22X

18,49X

41,15X

94ms

101ms

171ms

The grey area's indicate the highest speed / best time

The drive did this time managed to get the second place both for speed and seek times, only beaten by the Lite-On LTR-32123S at reading and the Mitsumi CR-4804ATE at seek times.

Reading from a CD-RW disc:

Again we made a copy of the original plextools disc. The copy was made by a Lite-On LTR-24102B at 10X write speed, the media we used was Verbatim 10X certified Highspeed CD-RW disc. Here is the manufacturer information that CD-R Identifier reports:

  • ATIP: 97m 34s 23f
  • Disc Manufacturer: Mitsubishi Chemicals Corp.
  • Reflective layer: Phase change
  • Media type: CD-ReWritable
  • Recording Speeds: min. 4X - max. 8X
  • Nominal Capacity: 656.40MB (74m 43s 00f / LBA: 336075)
But let us now take a look at the reading curve that Nero CD-Speed gives us:



The green line indicates the read speed. The yellow line indicates the rotation speed (rpm) that the disc have.

And here we find the same problem as we had with the LTR-24102B, the drive is locked at 16X reading for CD-RW discs. The seek times is respectable tough. But let us compare the result with other drives with similar specifications:






CD-RW
Discs

 Average 
Reading
Speed

Start
 Reading 
Speed

End
 Reading 
Speed

Seek
Times
 Random 

Seek
 Times 
1/3

Seek
 Times 
Full

Waitec
MEGALUS

25,19X

14,84X

33,26X

123ms

138ms

261ms

Lite-On
LTR-24102B

16,04X

16,05X

16,07X

141ms

148ms

258ms

Lite-On
LTR-32123S

25,99X

15,31X

34,38X

91ms

101ms

361ms

Mitsumi
 CR-480ATE 

30,98X

18,27X

40,84X

96ms

102ms Specifications

Music reading tests
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Reactions on this item
Posted by on Saturday 01 June 2002 15:52
Very nice review OC-Freak! Enjoyed reading it. Oh and nice pics by the way ;)
Posted by MP|3 on Saturday 01 June 2002 22:25
The pics were really a pain in the ass to get them right in the backend system ;)

Great review though.
Posted by on Wednesday 19 June 2002 08:58
In order to backup Cactus Data Shield Audio CD's. I've found it helps to insert the CD with autorun enabled and allow it to start the built-in player. Stop the player, load CloneCD and copy the CD (make sure you don't have any fast error skip stuff enabled). This (for me at least) results in a copy of the CD which completely works 100% (and in fact can be backed up or ripped perfectly). :)
Posted by on Monday 17 March 2003 13:46
I have the 40x write version of this drive but can only reach around 20x in EAC burst mode.

Any ideas what's wrong?
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