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TEAC CD-540E
TEAC CD-540E:
Speed test:
The first and surely most important testcriteria is the
speed of the CD-ROM drive. Our CD-ROM benchmark results the following
values according to the CD-type:
|
CD-Type |
Original
CD |
CD-R
green |
CD-R
blue |
CD-RW |
|
average
transfer rate |
KB/s |
|
|
|
|
|
x-fold
CD |
|
|
|
|
|
CPU
Load |
|
|
|
|
|
Access
times |
Forward
(in ms) |
minimum |
|
|
|
|
|
average |
|
|
|
|
|
maximum |
|
|
|
|
Backward
(in ms) |
minimum |
|
|
|
|
|
average |
|
|
|
|
|
maximum |
|
|
|
|
|
Benchmark |
|
ROMarks |
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|
|
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Table 2: Access
times and transfer rates with different CD-media |
The single average transfer rates are in those regions,
which faster CD-drives can reach. Extra mentionable is, that the CD-540E
delivers with 7.96/8.00 the top-value concerning the benchmark ROMarks
(this is valued by the access times) of all tested CD-drives at original
CD/blue CD-R. Opposite to this highlight stand the poor value of 4.40 at
green CD-R. This value tarnishes the good impression. As you can see in
the table, the reason for this low benchmark are the extemly high maximum
access times (forward and backward). Those appear regular on the CD and
can be so explained: the reading head is too fast and has to reduce its
speed. This takes its time and so elongates the access time. After this
reduction the drives switches to maximum speed at once. The fastest access
lies in those regions of other CD-types at 40 ms, so that a ROMark-value
of 8.0 could be surely possible without the 5-6 runaways.
The reading of rewritable ruffians is a special subject of the drive. With
a not earlier reached 8.56 ROMarks the drive stand unchallenged on the
first place. The access times are the smallest ever reached, a average of
80 ms has not been obtained anyway. A strong result!
To a confirmation of the average access time we copied a full original CD
of 552 MB size to the hard disk. The drive needs 3:34 min, so that we can
achieve a average transfer rate of 2641.3 KB/s or 17.6x CD. This confirms
the upper value of the benchmark.
Digital
Audio Extraction (DAE) / Audiograbbing:
The extraction of audio tracks gets more important since
the introduction of the MP3-fomat. We have tested the extraction speed
with the help of the Audio
Catalyst software. On a full, 74 minutes CD we get the
following speed per track:
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Picture 1:
Audioextraction speed |
As usual you can see, that the extraction speed increases
to the border of the audio-CD. But the maximum speed of 9.85x at the last
track is too small in todays comparison. Speeds of 15x-20x extraction are
no problems for todays drives. Here the CD-540E is not recommended.
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