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DVD Read Tests
I
would like to stress that dual layer DVD-Video reading is where this drive
truly shines above the rest. I experienced some issues with single layer
and recordable media though as I will show you below...
1.
CD-DVD Speed - Single Layer DVD
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Test Results |
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Transfer Speed
Average:
11.16x
Start:
6.63x
End: 8.09x |
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Seek
Times
Random:
102ms
1/3: 109ms
Full:
206ms |
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CPU
Usage
1X: 9%
2X: 22%
4X: 98%
8X: 44% |
Now, this drive is capable of hitting an
impressive 16x when reading single layer discs. However, what was quite
odd, was that at some point during testing, the drive would substantially
decrease its disc rotation speed. I normally don't have to do this, but
I was indeed bothered by this and I tried with a variety of other single layer
DVD-Video discs. However, I experienced these spikes at some point during
testing because the drive would basically slow to a crawl. Regardless, the speeds are impressive when compared to
other drives despite this issue.
2. CD-DVD Speed - Dual Layer PTP DVD
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Test Results |
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Transfer Speed
Average:
8.27x
Start:
5.03x
End:
10.26x |
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Seek
Times
Random:
101ms
1/3: 118ms
Full:
178ms |
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CPU
Usage
1X: 4%
2X: 8%
4X: 15%
8X: 29% |
This
is, by far, the fastest drive I've had the pleasure of testing when it comes
to reading dual layer DVD media. With PTP discs, it was able to hit a
maximum read speed of 10.26x with an average read speed of 8.27x. Seek
times and CPU usage were very good as well.
3.
CD-DVD Speed - Dual Layer OTP DVD
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Test Results |
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Transfer Speed
Average:
9.10x
Start:
5.03x
End:
12.04x |
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Seek
Times
Random:
109ms
1/3: 118ms
Full:
205ms |
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CPU
Usage
1X: 4%
2X: 7%
4X: 14%
8X: n/a |
Now just take a look at the results of a dual
layer OTP disc. Quite remarkable actually. Its maximum read speed
was 12x with an average speed of 9.10x. Seek times are usage rates were
very good here as well.
4. CD-DVD Speed - DVD-R, DVD-RW, DVD+R, DVD+RW
Final
tests consists of capturing maximum transfer rates of recordable DVD media.
Unfortunately, these results were absolutely unacceptable. I spent quite
a bit of time to try to get this drive to like my recordable DVD media, but it
just wouldn't perform and got some read errors as well. Let's have a
look at DVD+R and DVD-R read tests...
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**click to enlarge** |
**click to enlarge** |
The
screenshot on the left is the results with DVD-R media. No matter what
disc I tried, it just wouldn't complete the tests and got the error shown.
Now, with DVD+R discs, it was able to complete read tests but its performance
was absolutely horrible. And forget re-writable media...I wasted quite a
bit of time just trying to get this drive to read them properly. Perhaps
this particular sample is defective in some way. Regardless, I spent
quite a bit of time just trying to complete these tests with only poor results
to provide you with.
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