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Posted by Wesley Novack
Posted on 25/11/04 11:23
Number of views 14882
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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 16X for DVD's and 48X for CD's.

Pressed discs:

For this test we used a pressed CD-ROM disc containing Canon Digital Camera Solution Disk ver 9.0 that is 73:12.38 minutes long. Below you will see the produced result:

 

The drive had absolutely no trouble reading the Canon disc. To see how this compares to other drives, look below:

Pressed
Discs

Average
Read
Speed

Start
 Read 
Speed

End
 Read 
Speed

Seek
Times
 Random

Seek
 Times 
1/3

Seek
 Times 
Full

Lite-On

LDW-411S

29.29x

17.17x

38.81x

94ms

114ms

192ms

BenQ

DW822A

30.94x

17.28x

40.99x

101ms

113ms

166ms

NEC

ND-2510A

29.36x

16.82x

38.90x

112ms

116ms

169ms

Lite-On

SOHW-1633S

35.01x

19.73x

46.39x

121ms

126ms

214ms

Mad Dog

MD-16XDVD9

34.10x

19.54x

45.17x

109ms

127ms

187ms

Due to the 48X CD-ROM read specification, the MD-16XDVD9 was the fastest reader of all the drives with the exception of the Lite-On SOHW-1633S. The Mad Dog seek times were better than the Lite-On writers, but slightly slower than the NEC and BenQ drives.

CD-Recordable Discs:

For this test we made a copy of the original Canon Digital Camera Solution CD. The disc we used was a Verbatim 48X certified CD-R disc manufactured by Mitsubishi Chemicals Corporation.

 

There were no problems reading the CD-R disc copy and it had no problems reaching near 48x. 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

Lite-On

LDW-411S

30.62x

18.06x

40.37x

107ms

138ms

203ms

BenQ

DW822A

32.24x

18.46x

42.40x

97ms

110ms

161ms

NEC

ND-2510A

30.59x

17.91x

40.32x

117ms

119ms

169ms

Lite-On

SOHW-1633S

36.54x

21.42x

48.13x

123ms

153ms

229ms

Mad Dog

MD-16XDVD9

35.49x

20.74x

46.78x

125ms

131ms

189ms

 

The Mad Dog read the CD-R faster than all the other tested drives except for the Lite-On SOHW-1633S.  Once again the MD-16XDVD9 had better seek times than the Lite-On writers, but not the BenQ and NEC drives.

CD-ReWritable discs:

We made a copy of the original Canon disc, this time we used a Verbatim High Speed (12X) CD-RW disc made by Mitsubishi Chemicals Corporation.

 

The drive reads CD-RW discs slightly above 32x 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

Lite-On

LDW-411S

25.23x

14.66x

33.41x

106ms

135ms

210ms

BenQ

DW822A

32.88x

18.43x

43.43x

96ms

107ms

165ms

NEC

ND-2510A

25.98x

14.94x

34.40x

119ms

122ms

185ms

Lite-On

SOHW-1633S

24.22x

13.98x

32.07x

124ms

149ms

234ms

Mad Dog

MD-16XDVD9

25.92x

14.93x

34.33x

126ms

135ms

200ms

The Mad Dog is average in this test, both for speed and seek times. It can't compete with the drives that read CD-RW discs at full speed, such as the BenQ DW822A.

Audio - Digital Audio Extraction:

To test the digital audio extraction performance of the Mad Dog MD-16XDVD9, we again used Nero CD/DVD-Speed to measure the transfer rate. The audio disc we used is approximately 74 minutes long (74:02:70).

 

The drive has an Audio CD read limitation and could only read the disc slightly faster than 34x. 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

Lite-On

LDW-411S

30.84x

18.07x

39.28x

109ms

120ms

192ms

BenQ

DW822A

32.55x

15.25x

43.14x

102ms

118ms

168ms

NEC

ND-2510A

25.75x

14.82x

34.03x

108ms

117ms

168ms

Lite-On

SOHW-1633S

37.00x

20.89x

48.96x

159ms

142ms

207ms

Mad Dog

MD-16XDVD9

25.71x

14.82x

34.09x

120ms

140ms

194ms

 

The MD-16XDVD9 ranked last in Audio CD reading speeds. It did however, once again outperform the Lite-On 1633S in seek times.

We performed additional Audio tests using Exact Audio Copy (EAC) to extract the audio to our hard drive. According to EAC, the Mad Dog supports both Accurate stream and C2 error reporting, which is good. It also supports caching, which is a negative and makes extraction more complicated and insecure.

Below is the results produced by EAC:

 

Burst mode

 

 

Secure mode

The drive performed well in the burst mode and secure mode tests.

Advanced audio - DAE quality test:

Before we move on to testing DVD read speeds we perform one last audio test. This time we used the 'Advanced DAE Quality Test" feature in CD-Speed.

 

The extracting quality is very good, but it lacks support for reading data from the lead-in and lead-out. This may affect its' abilities to read protected audio discs. The Advanced DAE Quality test also indicates that it should not be used as the reading drive for on-the-fly Audio CD copying at greater than 12x.

DVD reading performance:


Again we will use Nero CD-Speed to measure the reading performance, this time for various types of DVD discs. According to the specifications, the drive should read pressed single layer DVD-ROM discs at 16X.

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 is 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.

Single Layer DVD Video

 

 

Double Layer DVD Video

 

From this test, we can see that this drive can only read DVD-Video discs at 5X speed maximum. How this compares to other drives can be seen in the table below.

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)

Lite-On

LDW-411S

9.24x

5.13x

12.34x

6.27x

3.48x

8.36x

BenQ

DW822A

9.30x

5.10x

12.46x

6.04x

3.34x

8.06x

NEC

ND-2510A

3.74x

2.06x

5.00x

3.43x

1.90x

4.58x

Lite-On

SOHW-1633S

11.89x

6.82x

15.68x

6.20x

3.45x

8.27x

Mad Dog

MD-16XDVD9

3.74x

2.06x

5.00x

3.43x

1.90x

4.58x

The MD-16XDVD9 ends up among the slowest drives due to the limited reading speed of only 5x. For comparison purposes we also tested a data DVD-ROM disc and found that it can read single layer data DVD-ROM discs at 16X.

DVD - DVD+R(W):


For this test we used a Taiyo Yuden 8X DVD+R and a RICOH 4X DVD+RW with about 4.4GB of data. Below are the results:

 

 

DVD+R was read at full 16X speed without any problems! Excellent results. The reading speed was locked to 8x for DVD+RW. You can compare these Mad Dog speeds to other drives using the table below:

DVD+R
DVD+RW

Average 
Read
Speed
(+R)

Start
 Read 
Speed
(+R)

End
 Read 
Speed
(+R)

Average 
Read
Speed
(+RW)

Start
 Read 
Speed
(+RW)