CDFreaks Poll
What would you buy for $200 / EUR 200?
A cheap Blu-ray player
An expensive DVD player
Based on 774 ratings

detail information

Posted by Jan S.
Posted on 06/11/04 17:58
Menu
CD R/W Writing performance
 

The specifications of the Pioneer DVR-A08XLA state that the drive is able to write CD-R discs at 32x. Let us find out how the drive really performs in speed and quality.

Writing Data CD-R discs:


Let us first take a look at the CD-R write technology used by the Pioneer DVR-A08XLA:

 

As we could see the Pioneer DVR-A08XLA uses Zone-CLV (Zone-Constant Linear Velocity) to write at its rated speed of 32x, this gives an average speed of 24.94x. This of course makes it a lot slower than many other new drives, let's compare it with two of the fastest writers below.

As we could see the Plextor PX-708A uses P-CAV (Partial-Constant Angular Velocity) writing strategy to reach it rated speed of 40X. This gives an average speed of 33.38x.

 

As we could see the Plextor PX-712A uses CAV (Constant Angular Velocity) writing strategy to reach it rated speed of 48X. This gives an average speed of 36.43x.

And as a last test we wrote a disc containing 700Mb using Nero Burning ROM software. Writing method used is DAO (Disc At Once), and the disc is set up as a non-multisession disc with 'finalize disc" enabled.

 

The Pioneer DVR-A08XLA used 4 minutes and 15 second to write the disc at 32x. Let us see how this compares to other drives;

CD-R
Disc
Writing

Supported
Write
Speed

Write
Strategy

Start
Write
Speed

End
Write
 Speed

Average
 Write 
Speed

Write
 Time 
700Mb
CD-Speed

Write
Time
700Mb
Nero

Plextor
PX-708A

40x

P-CAV

20.37x

39.90x

33.38x

2m:55s

2m:58s

NEC
ND-2500A

32x

Z-CLV
5 zones

16.01x

32.05x

27.16x

3m:34s

3m:43s

NU
DDW-082

40x

CAV

18.20x

41.11x

31.15x

3m:01s

3m:2s

Lite-On
SOHW-812S

40x

CAV

18.60x

41.78x

31.67x

3m:01s

3m:3s

BTC
DRW1108IM

40x

CAV

18.86x

42.44x

32.16x

3m:03s

3m:5s

MSI
DR8-A2

40x

CAV

18.45x

41.47x

31.45x

3m:9s

3m:13s

Plextor
PX-712A

48x

CAV

21.28x

48.14x

36.43x

2m:43s

2m:45s

Philips
DVDR1640P

40x

CAV

17.74x

40.60x

29.86x

3m:21s

3m:17s

BenQ
DW1620A

40x

CAV

17.75x

40.61x

29.37x

3m:24s

3m:23s

Pioneer
DVR-A08XLA

32x

Z-CLV
3 zones

16.03x

32.20x

24.94x

4m:00s

4m:15s

As we could see it's over a minute slower than the fastest drives due to the low writing speed of only 32x Z-CLV. But the writing quality may make up for the lack of speed, head on and find out.

Write Quality:


We will test CD-R discs from a total of 7 different CD-R manufacturers. To really measure the write speed, we used the 'create data CD" function in Nero CD-Speed. The discs were written at the maximum speed that the drive supports. For the quality test, we used K-Probe 2 which is a tool developed by a Lite-On Employee. It runs under Windows and works with drives made by Lite-On. Also note that different drives and different reading speeds may affect the results obtained when scanning the discs. We used a Lite-On LTR-52246S drive with firmware 6S0F and scanned the discs at 48X speed.

A written CD-R disc will always have some C1 errors; C1 errors are easily corrected by the drive's error correction capabilities. The next level of errors is C2, while C2 errors could also be corrected by most drive's error correction capabilities; they are not wanted on a good quality disc. A good disc should not contain any C2 errors, and preferably have an average C1 error amount of below 2.0 for the best discs, or at least below 10.0 average for good quality discs. After C2 errors there are only un-correctable errors that will make a disc unusable.

Why wait any longer? Below are the obtained results:

 

Brand:

Memorex, thanks to Memorex for providing it.

Manufacturer:

CMC Magnetics

Code:

97m26s66f

Disc Type:

CD-R

Recording Layer:

Dye Type 6: Short Strategy (Phthalocyanine)

Capacity:

79:59.73 (703MB)

Certified Speed:

48x

Write Speed:

32x

Write Time:

4m:00s

C1 Average/Sec:

11.92

C2 Average/Sec:

0.0

CMC Magnetics is not known for making the best CD-R discs and as we could see the error level is a bit high, especially the area written at 32x.

 

Brand:

MMORE

Manufacturer:

Moser Baer India

Code:

97m17s06f

Disc Type:

CD-R

Recording Layer:

Dye Type 6: Short Strategy (Phthalocyanine)

Capacity:

79:59.74 (703MB)

Certified Speed:

52x

Write Speed:

32x

Write Time:

4m:00s

C1 Average/Sec:

3.27

C2 Average/Sec:

0.0

The best results we got, ironically enough it's still worse than the worst result we got with the BenQ DW1620A…

 

Brand:

Verbatim Data Life Plus

Manufacturer:

MitsubishiChina

Code:

97m34s23f

Disc Type:

CD-R

Recording Layer:

Dye Type 3: Long Strategy (Cyanine or AZO)

Capacity:

79:59.73 (703MB)

Certified Speed:

48x

Write Speed:

32x

Write Time:

4m:01s

C1 Average/Sec:

4.57

C2 Average/Sec:

0.0

Acceptable, but not perfect.

 

Brand:

That's Write - Thanks to That's Write for providing it.

Manufacturer:

Ritek (JS Dye)

Code:

97m15s17f

Disc Type:

CD-R

Recording Layer:

Dye Type 7: Short Strategy (Phthalocyanine)

Capacity:

79:59.70 (703MB)

Certified Speed:

48x

Write Speed:

32x

Write Time:

4m:00s

C1 Average/Sec:

6.83

C2 Average/Sec:

0.95

Not good, the disc has a lot of C2 errors near the end, the LTR-52246S slowed down the reading speed near the end as we could see on the result.

 

Brand:

Miflop Extreme - Thanks to Miflop for providing it

Manufacturer:

Taiyo Yuden

Code:

97m24s01f

Disc Type:

CD-R

Recording Layer:

Dye Type 1: Long Strategy (Cyanine or AZO)

Capacity:

79:59.72 (703MB)

Certified Speed:

48x

Write Speed:

32x

Write Time:

4m:00s

C1 Average/Sec:

3.66

C2 Average/Sec:

0.0

Acceptable, but still far from the best we have seen with TY.

 

Brand:

Samsung

Manufacturer:

Prodisc China

Code:

97m32s19f

Disc Type:

CD-R

Recording Layer:

Dye Type 9: Short Strategy (Phthalocyanine)

Capacity:

79:59.72 (703MB)

Certified Speed:

52x

Write Speed:

10x

Write Time:

9m:12s

C1 Average/Sec:

6.97

C2 Average/Sec:

0.0

For a reason or another it would only write these prodisc CD-R's at 10x, and the quality is nothing to shout hurray for either.

 

Brand:

Samsung

Manufacturer:

Plasmon Data Systems, Ltd.

Code:

97m27s18f