While CPU, memory, OS and other variables don't often make a huge difference, there are some nonetheless. We have a computer that is used only for testing hardware. We do this so all tests can be compared reliably.

Test System:

CPU:  AMD Athlon 64 X2 4600+ 2.4GHz 
Motherboard: ASUS M2N-SLI Deluxe with BIOS 0304
Memory: Corsair TWIN2X2048-6400
Video Card: MSI NX7900GT-T2D256E - ForceWare v93.71
Hard Drive: Seagate Barracuda 7200.10 SATA 3.0Gb/s 320GB
Operating System: Windows XP SP2 - NVIDIA nForce v9.16

 

 

 

 

 

 

 

 

 

 

For BD-ROM drives, the performance tests are normally broken down into three sections: CD read, DVD read and BD read. Each benchmark test has been run three times. The score given is an average of the three. DMA has been enabled in device manager for all IDE devices supporting it.

CD Read Tests: For the read performance section of the CD-ROM benchmarks, CD WinBench 99 and CD Speed are used to test transfer speeds, seek times and CPU usage. For DAE testing, CD Speed is used to give an overall speed rating.

DVD Read Tests: For the read performance section of the DVD benchmarks CD Speed is used to test transfer speeds, seek times, and CPU usage.

BD Read Tests: For the read performance section of the BD benchmarks, CD Speed is used to test transfer speeds, seek times, and CPU usage.

CD Winbench 99 Scores:

   Lite-On
iHOS104
Lite-On
DX-4O1S
Lite-On
DH-4O1S
CD Winbench 99 1140 KB/sec 1800 KB/sec 1870 KB/sec
Transfer Rate: Inside 1620 KB/sec 2180 KB/sec 2180 KB/sec
Transfer Rate: Outside 4320 KB/sec 4320 KB/sec 4320 KB/sec
Random Access Time 120ms 112ms 115ms
CPU Utilization 10.6% 4.26% 2.87%

The CD Winbench test is as close as we can get to testing every day usage. It fires off eight different applications using scripts. This tries to mimic the activities of a person loading these programs onto their own computer.

Lite-On's new BD-ROM drive gave us some mixed performance in our CD Winbench tests. While the iHOS104's overall score wasn't as high as the other drives, its transfer rates were fairly good. It started reading at about 10.8x (1620 / 150) and quickly accelerated, reaching a maximum speed of 28.8x (4320 / 150).

CD Speed v4.7.7.16 - Pressed CD:

For this test I used a pressed CD containing one Mode 1 data track. The disc is 74:38 in size and is full of data and directories.


 
   Lite-On
iHOS104
Lite-On
DX-4O1S
Lite-On
DH-4O1S
Transfer Speed
Average:
Start:
End:

24.11x
14.85x
31.88x

24.10x
14.02x
31.88x

24.11x
14.05x
31.89x
Seek Times
Random:
1/3:
Full:

119ms
130ms
179ms

120ms
143ms
230ms

122ms
151ms
248ms
CPU Usage
1x:
2x:
4x:
8x:

0%
1%
1%
3%

0%
1%
3%
6%

0%
1%
2%
3%

The iHOS104 didn't perform as well as I had expected when reading pressed CD's. While rated at 32x, Lite-On's new drive came up a little short of this number in our tests. On a more positive note, the iHOS104's seek times were pretty good. 

CD Speed v4.7.7.16 - CD-R Media:

For this test I made a copy of our pressed test CD. I used 12x rated Memorex Gold 74 minute media for the tests.


 
   Lite-On
iHOS104
Lite-On
DX-4O1S
Lite-On
DH-4O1S
Transfer Speed
Average:
Start:
End:

24.64x
14.03x
32.66x

24.63x
14.17x
32.64x

24.64x
14.20x
32.66x
Seek Times
Random:
1/3:
Full:

119ms
133ms
181ms

121ms
150ms
244ms

122ms
150ms
254ms
CPU Usage
1x:
2x:
4x:
8x:

0%
1%
1%
3%

0%
1%
3%
6%

0%
1%
2%
3%

Like the other drives, the iHOS104 was a little faster when reading CD-R media. Thanks to this small speed boost, the drive was able to reach a maximum transfer speed of 32.66x.

While Lite-On's new BD-ROM drive had no problems recognizing our 99 minute CompUSA media, it slowed down considerably when reading it back. As you can see, the drive reached a maximum transfer speed of only 11x.

CD Speed v4.7.7.16 - CD-RW Media:

For this test I made a copy of a pressed test CD. I used some PNY 80 minute CD-RW media for the tests. 


 
   Lite-On
iHOS104
Lite-On
DX-4O1S
Lite-On
DH-4O1S
Transfer Speed
Average:
Start:
End:

24.20x
14.19x
31.97x

24.19x
14.14x
31.95x

24.20x
14.14x
31.96x
Seek Times
Random:
1/3:
Full:

120ms
130ms
179ms

122ms
152ms
243ms

120ms
149ms
230ms
CPU Usage
1x:
2x:
4x:
8x:

0%
1%
1%
3%

0%
1%
3%
5%

0%
1%
2%
3%

The iHOS104 is also rated at 32x when reading CD-RW media. While it came close, it wasn't able to reach this number in our tests.

CD Speed v4.7.7.16 (DAE) - Pressed CD:

For this test I used Pure Funk. The CD is almost exactly 74 minutes. This helps to squeeze the maximum performance out of the CD.

Exact Audio Copy can tell us a lot about a drive's capabilities. You can see from the screen shot that while the Lite-On iHOS104 supports accurate stream, it does not cache audio data nor does it have the ability to retrieve C2 error information from the CD.


 
CD Speed Lite-On
iHOS104
Lite-On
DX-4O1S
Lite-On
DH-4O1S
Average:
Start:
End:
DAE Quality:
Accurate Stream:
24.33x
13.96x
32.15x
10
Yes
24.35x
15.55x
32.15x
10
Yes
24.36x
15.92x
32.17x
10
Yes

The iHOS104 did fairly well in our DAE tests. While not nearly as fast Lite-On's previous BD-ROM drives, it had no problems ripping pressed audio CD's at 32x.

CD Speed v4.7.7.16 (DAE) - CD-R Media:

For this test I used a copy of the Pure Funk CD. It's burned onto the same Memorex Gold 74 minute media used in the data CD tests.


 
CD Speed Lite-On
iHOS104
Lite-On
DX-4O1S
Lite-On
DH-4O1S
Average:
Start:
End:
DAE Quality:
Accurate Stream:
24.10x
13.93x
31.79x
10
Yes
24.13x
15.61x
31.79x
10
Yes
24.13x
16.04x
31.81x
10
Yes

Lite-On's BD-ROM drive was a little slower when ripping audio CD-R discs. While the drive came very close, it wasn't able to reach 32x this time around. So how did it do in CD Speed's advanced DAE tests? Take a look below.

The iHOS104 completed CD Speed's advanced DAE tests with an average score of 22.93x. While the drive went through all of the tests without creating any errors, it was unable to pass all of the on the fly copying tests. If you look at the advanced features, you can see that the iHOS104 was able to read the CD-Text and subchannel data but failed to read the lead in and lead out sections of the CD.