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Posted by Tor Magne
Posted on 18/05/04 21:54
Number of views 7758
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Reading performance
 

Reading performance:


 

For these tests we will use Nero CD/DVD-Speed to read various CD and DVD's, including audio discs and DVD-media. As already mentioned in the introduction, this drive sports a specified read speed of 12X for DVD's and 40X for CD's.

Pressed discs:

For this test we used a pressed CD-ROM disc containing PlexTools v1.08 that is exactly 74 minutes long. Below you will see the produced result:

 

The drive reached its rated speed of 40X, below is a comparison table with other drives:

Pressed
Discs

Average
Read
Speed

Start
 Read 
Speed

End
 Read 
Speed

Seek
Times
 Random

Seek
 Times 
1/3

Seek
 Times 
Full

Plextor
PX-708A

31.40x

18.48x

41.45x

98ms

116ms

175ms

Mediagear /
BTC DRW1004

31.98x

19.09x

41.88x

92ms

105ms

164ms

NEC
 ND-2500A

31.00x

17.85x

41.05x

104ms

114ms

166ms

Pioneer
DVR-107D

30.86x

18.36x

40.76x

122ms

142ms

281ms

NU
DDW-082

32.36x

18.56x

42.70x

114ms

106ms

159ms

Lite-On
SOHW-812S

30.56x

17.92x

40.26x

93ms

108ms

183ms

BenQ
DW822A

32.37x

18.41x

42.52x

96ms

112ms

165ms

The drive is very fast and is able to outperform all the other drives, and the seek times is good too.

CD-Recordable Discs:

For this test we made a copy of the original PlexTools v1.08 CD. The disc we used was a Verbatim 48X certified CD-R disc manufactured by Mitsubishi Chemicals Corporation.

 

Nothing changes here, and the result is about identical to reading the pressed disc, if not better. The usual comparison table is found below.

CD-R
Discs

Average 
Read
Speed

Start
 Read 
Speed

End
 Read 
Speed

Seek
Times
 Random

Seek
 Times 
1/3

Seek
 Times 
Full

Plextor
PX-708A

31.48x

18.83x

41.37x

95ms

111ms

164ms

Mediagear /
BTC DRW1004

32.14x

19.21x

42.26x

89ms

93ms

159ms

NEC
ND-2500A

30.77x

17.92x

40.61x

113ms

115ms

166ms

Pioneer
DVR-107D

31.24x

18.26x

41.21x

123ms

143ms

282ms

NU
DDW-082

32.34x

18.48x

42.65x

93ms

103ms

154ms

Lite-On
SOHW-812S

30.87x

18.16x

40.74x

107ms

126ms

207ms

BenQ
DW822A

32.35x

18.43x

43.89x

94ms

105ms

157ms

Agian it's the fastest drive, along with good seek times.

CD-ReWritable discs:

Again we made a copy of the original PlexTools v1.08 disc, this time we used a Verbatim High Speed (10X) CD-RW disc made by Mitsubishi Chemicals Corporation.

 

The drive reads CD-RW discs at full 40x speed, to see how this compares to other drives; look below:

CD-RW
Discs

Average 
Read
Speed

Start
 Read 
Speed

End
 Read 
Speed

Seek
Times
 Random

Seek
 Times 
1/3

Seek
 Times 
Full

Plextor
PX-708A

31.46x

18.47x

41.55x

109ms

116ms

183ms

Mediagear /
BTC DRW1004

26.67x

15.68x

35.21x

93ms

102ms

166ms

NEC
ND-2500A

26.14x

14.96x

34.64x

120ms

124ms

187ms

Pioneer
DVR-107D

25.55x

14.77x

33.87x

128ms

149ms

291ms

NU
DDW-082

32.98x

18.57x

43.72x

101ms

115ms

172ms

Lite-On
SOHW-812S

25.40x

14.68x

33.66x

106ms

138ms

209ms

BenQ
DW822A

32.98x

18.41x

43.77x

97ms

107ms

169ms

Amazing! It's right up there and is the fastest drive along with the NU DDW-082, and it again shows very good seek times too.

Audio '? Digital Audio Extraction:

To test the digital audio extraction performance of the BenQ DW822A, we again used Nero CD/DVD-Speed to measure the transfer rate. The audio disc we used is slightly larger than the disc used for the other tests, to be exact it's about 78 minutes long (77:56:57).

 

The drive had no problems with reading the audio disc at full speed and everything seems good, so let us compare the result with other drives:

Audio
Discs

Average 
Read
Speed

Start
 Read 
Speed

End
 Read 
Speed

Seek
Times
 Random

Seek
 Times 
1/3

Seek
 Times 
Full

Plextor
PX-708A

31.84x

18.90x

41.98x

97ms

117ms

181ms

Mediagear /
BTC DRW1004

31.78x

19.22x

38.80x

89ms

106ms

161ms

NEC
ND-2500A

25.55x

15.00x

34.37x

122ms

117ms

177ms

Pioneer
DVR-107D

31.31x

18.03x

42.01x

122ms

148ms

292ms

NU
DDW-082

32.84x

18.49x

43.61x

92ms

106ms

158ms

Lite-On
SOHW-812S

31.02x

17.83x

41.09x

108ms

138ms

214ms

BenQ
DW822A

32.87x

18.46x

43.49x

94ms

108ms

162ms

Again; Perfect! It comes out as the fastest drive and has good seek times, good job BenQ!


And as a last test we used Exact Audio Copy (EAC) to extract the audio to our hard drive. According to EAC the BenQ DW822A only supports Accurate stream. It does not support caching (which is good and makes secure extraction easier). But it does not support reporting C2 errors which of course are not a good thing.

 

 

Below is the results produced by EAC:

 

Burst mode

 

Secure mode

The drive performed very well in the burst mode test, but below average in the secure mode test.

Advanced audio '? DAE quality test:

Before we move on to testing DVD read speeds we will take a last audio test, this time we used the 'Advanced DAE Quality Test" feature in CD-Speed.

 

The extracting quality should be very good, and it should support everything except reading data from the lead out. Very good, gets a plus in our book.

DVD reading performance:


 

Again we will use Nero CD-Speed to measure the reading performance, this time for various types of DVD discs. The drive should read pressed single layer DVD-discs at 12X.

DVD '? DVD-Video:

For our DVD reading performance tests we are going to start with single and dual layered DVD video discs. While only 1X speed is required to watch DVD movies, it's useful to be able to read the discs at higher speeds if you're going to extract (rip) the content of the disc to your hard drive.

 

 

As we can see, this drive does not have a speed limit when reading DVD-Video discs. The single layer disc was read at full 12x speed and the dual layer disc was read at 8x.

DVD
Video

Average 
Read
Speed
(SL)

Start
 Read 
Speed
(SL)

End
 Read 
Speed
(SL)

Average 
Read
Speed
(DL)

Start
 Read 
Speed
(DL)

End
 Read 
Speed
(DL)

Plextor
PX-708A

9.01x

5.00x

12.04x

6.03x

3.37x

8.03x

Mediagear /
BTC DRW1004

9.22x

3.16x

12.34x

4.75x

2.67x

6.32x

NEC
ND-2500A

3.76x

2.06x

5.03x

3.42x

1.83x

4.56x

Pioneer
DVR-107D

3.87x*

2.20x

5.16x*

3.56x

2.21x

5.22x

NU
DDW-082

4.59x*

2.57x

6.13x

4.24x

2.37x

5.65x

Lite-On
SOHW-812S

9.15x*

5.18x

12.18x

6.30x

3.54x

8.39x

BenQ
DW822A

9.19x*

5.10x

12.28x

6.02x

3.36x

8.05x

*Notice that the disc contains a bit less data than the disc used with the other drives, this is because the other larger discs we had is made with DVD-ROM booktype and this may affect the reading performance, and thus we have switched over to this disc with DVD-Video booktype.

The BenQ DW822A is among the fastest drives for reading DVD-Discs and it does not have any speed locks for reading DVD-Video discs either. Another plus in our book.

DVD '? DVD+R(W):


 

For this test we used a Taiyo Yuden 4X DVD+R and a Ricoh 4X DVD+RW with about 4,4Gb of data. Below are the results:

 

 

The reading speed was locked to 8x for both DVD+R and DVD+RW, look below for comparison results.

DVD+R
DVD+RW

Average 
Read
Speed
(+R)

Start
 Read 
Speed
(+R)

End
 Read 
Speed
(+R)

Average 
Read
Speed
(+RW)

Start
 Read 
Speed
(+RW)

End
 Read 
Speed
(+RW)

Plextor
PX-708A

6.05x

3.33x

8.10x

6.07x

3.34x

8.11x

Mediagear /
BTC DRW-1004

4.67x

2.59x

6.24x

4.68x

2.60x

6.25x

NEC
ND-2500A

5.97x

3.27x

7.99x

5.98x

3.29x

7.99x

Pioneer
DVR-107D

6.28x

3.48x

8.40x

6.08x

3.48x

8.23x

NU
DDW-082

6.24x

3.42x

8.36x

6.25x

3.43x

8.36x

Lite-On
SOHW-812S

6.14x

3.39x

8.23x

6.18x

3.43x

8.26x

BenQ
DW822A

6.25x

3.41x

8.37x

6.25x

3.41x

8.35x

The drive did very good, and is among the fastest drive in this test.

DVD '? DVD-R/RW:


 

For this test we used a Taiyo Yuden 4X DVD-R disc and a Verbatim 2X DVD-RW disc filled with about 4,4Gb of data. Our test results are found below:

 

 

There are hardly any differences compared to reading the DVD+R/RW discs.

DVD-R
DVD-RW

Average 
Read
Speed
(-R)

Start
 Read 
Speed
(-R)

End
 Read 
Speed
(-R)

Average 
Read
Speed
(-RW)

Start
 Read 
Speed
(-RW)

End
 Read 
Speed
(-RW)

Plextor
PX-708A

6.00x

3.37x

8.04x

6.06x

3.34x

8.11x

Mediagear /
BTC DRW1004

4.68x

2.58x

6.28x

4.70x

2.58x

6.28x

NEC
ND-2500A

5.99x

3.30x

8.00x

5.98x

3.29x

8.00x

Pioneer
DVR-107D

6.27x

3.51x

8.38x

6.25x

3.49x

8.23x

NU
DDW-082

6.27x

3.42x

8.65x

6.25x

3.40x

8.47x

Lite-On
SOHW-812S

6.19x

3.43x

8.27x

6.14x

3.40x

8.22x

BenQ
DW822A

6.26x

3.40x

8.41x

6.24x

3.38x

8.35x

The drive is again right up there among the fastest drives.

Overall thoughts:

The reading speed is outstanding in almost every reading test we tried, and it outperforms most other drives in nearly all tests. Along with this it has good seek times, so it gets a big plus in our book.

But now it's time to head on to a more interesting part: Writing CD-R discs…

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Reactions on this item
hi,

can i know how much for current price for BENQ DVDRW(+,-) grade A for 25pieces in market now?

Regards,
Ch'ng
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