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Posted by Dennis
Posted on 28/03/03 20:11
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Read Tests
 

In this part of our TEAC review we'll test how fast the drive can read various media, including audio CDs. On the retail box of the CD-W552E drive we can read that DAE (Digital Audio Extraction) can be done at 52x so let's see if this is indeed the case. Let's start with a pressed data disc:

Pressed Discs:


For the transfer rate tests we used a pressed CD-ROM containing PlexTools v1.05 which was exactly 74 minutes (333.000 sectors) long. As a comparison we've also read the same disc with a Lite-On LTR-52246S recorder. Below you can see both Nero CD Speed graphs:


TEAC CD-W552E reading pressed disc


Lite-On LTR-52246S reading pressed disc

From the produced graphs you can see that both drives show a similar performance. The Lite-On drive is slightly faster than the TEAC drive but both failed to reach 52x. Their seek times were also very close but the TEAC had a slightly lower, and thus better, CPU usage:

Pressed
Discs
 Average 
Reading
Speed
Start
 Reading 
Speed
End
 Reading 
Speed
Seek
Times
 Random 
Seek
 Times 
1/3
Seek
 Times 
Full
Lite-On
LTR-52246S
37.94x 22.97x 50.06x 88ms 102ms 152ms
TEAC
CD-W552E
37.53x 22.09x 49.54x 88ms 104ms 160ms

CD-Recordable Discs:


For the transfer rate tests with CD-Recordable Media we used a back-up (CD-R) of a PlexTools v1.05 disc. The used disc was a 'That's Write' CD-R certified up to 16x writing and manufactured by Gigastorage. The back-up disc was of course also 74 minutes (333.000 sectors) long. Below you can see the produced graphs with Nero CD Speed:


TEAC CD-W552E reading CD-Recordable disc


Lite-On LTR-52246S reading CD-Recordable disc

From the graphs you can see that the TEAC was again a little slower than the Lite-On drive. Its seek times were a little higher than the Lite-On drive but its CPU usage was again lower:

CD-R
Discs
 Average 
Reading
Speed
Start
 Reading 
Speed
End
 Reading 
Speed
Seek
Times
 Random 
Seek
 Times 
1/3
Seek
 Times 
Full
Lite-On
LTR-52246S
39.28x 24.16x 51.60x 95ms 98ms 153ms
TEAC
CD-W552E
38.80x 23.21x 50.99x 93ms 105ms 163ms

CD-ReWriteable Discs:


To test the transfer rate with CD-RW discs we again used the "PlexTools v1.05" disc only this time we read from a CD-ReWriteable disc. The used disc was a 'Plextor Ultra Speed CD-RW' disc manufactured by Mitsubishi. The CD-RW disc was of course also 74 minutes (333.000 sectors) long. Below you can see the produced graphs with Nero CD Speed again:


TEAC CD-W552E reading CD-ReWriteable disc


Lite-On LTR-52246S reading CD-ReWriteable disc

From the produced graps you can see that the TEAC CD-W552E drive is limited to about 32x when reading re-writeable media. The Lite-On recorder is also limited but to about 40x. The seek times of both drives were again very close and the TEAC drive again had a lower CPU usage:

CD-RW
Discs
 Average 
Reading
Speed
Start
 Reading 
Speed
End
 Reading 
Speed
Seek
Times
 Random 
Seek
 Times 
1/3
Seek
 Times 
Full
Lite-On
LTR-52246S
31.94x 19.38x 42.14x 88ms 101ms 154ms
TEAC
CD-W552E
25.12x 14.79x 33.16x 92ms 105ms 154ms

Audio Discs - Digital Audio Extraction:


To test the TEAC's digital audio extraction performance we again used Nero CD Speed to do a transfer rate test. The audio disc we used was of a slightly larger size than in our previous tests (77 minutes). In the graphs below you can see the performance of both the TEAC recorder and the Lite-On recorder:


TEAC CD-W552E reading audio disc


Lite-On LTR-52246S reading audio disc

From the graphs you can see that this time the TEAC drive was slightly faster than the Lite-On drive. The seek times of the TEAC were also a little better this time and the drive again also has a lower CPU usage. Both drives have an accurate audio stream and a quality score of 10 (which is the highest score):

CD-RW
Discs
 Average 
Reading
Speed
Start
 Reading 
Speed
End
 Reading 
Speed
Seek
Times
 Random 
Seek
 Times 
1/3
Seek
 Times 
Full
Lite-On
LTR-52246S
37.39x 22.81x 49.23x 87ms 101ms 157ms
TEAC
CD-W552E
39.41x 23.35x 51.91x 83ms 100ms 156ms

As a final test we used Exact Audio Copy (EAC) to extract the audio disc to our hard disk. In the screenshots below you can see the TEAC CD-W552E's performance using both the burst ripping mode and the secure ripping mode. The TEAC CD-W552 supports Caching, Accurate Stream and C2 Error Info in EAC's secure ripping mode:
 


TEAC CD-W552E ripping audio disc - Burst Mode


TEAC CD-W552E ripping audio disc - Secure Mode

The TEAC CD-W552E drive performs very well in both modes. It almost reaches 52x when ripping the audio disc in burst mode and its performance in secure mode is the fastest speed we've seen on a drive!

Audio Discs - Advanced DAE Quality Test:


To conclude our read tests we did an 'Advanced DAE Quality Test' with Nero CD Speed. You can see the produced results below:

The TEAC CD-W552E showed an excellent performance in the advanced DAE test. Its average read speed was very close to the Lite-On LTR-52246S recorder (33.42x) and the TEAC drive had no problems reading the CD-text and SubChannel Data on the test disc.

So far for the reading part. Now let's see how the TEAC drive performs when writing discs...
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Reactions on this item
I find it hard to believe that quality Mitsui media would be that bad. Did you record at the maximum speed of the drive, or the maximum recommended speed of the media? Try it again at 16-32x.
.
While it is true that many recorders have a difficult time getting Phthalocyanine dyed media, when the data finally gets put on there, it will last longer.
As mentioned in the review:

Mitsui/MAM-E - 48x certified - 48x write

So the discs were certified for 48x recording and were also written at that speed. The TEAC simply didn't like these discs at all. Edit, ATIP information on the used discs:

Manufacturer: Mitsui
Code: 97m27s58f
Disc Type: CD-R
Usage: General
Recording Layer: Dye Type 8: Short Strategy (Phthalocyanine)
Capacity: 79:59.74 703 MB
[edited by G@M3FR3@K on 29.03.2003 16:01]
Well... I have a Teac CD-W540E, a Teac CD-W548E and now I am going to get a Teac CD-W552E Tomorrow!

The first (40X) Unit works perfectly, but the CD-W548E thrashed a month ago (only 2 months after buying it). Anyhow, I was not sure whether I should keep buying Teac units (cos the 48/16/48 unit was baaad), but this article definately eased my decision. A such great unit is a must-have!!!

Actually, I don't care very much about the drive's incapacity of reading copy-protected audio CDs, so my opinion is that it's not a flaw.

Also, the existence of a 52X certified CD-R in the package is not really really necessary. Such media will appear more often in the next 2 or 3 months, I guess. And concerning the 24X CD-RWs, I already have bought 25 of them @ 1.5 USD per piece, so I'll test them as soon as I get this great unit!
I hated this drive when I was using firmware 1.05. I never had problems, but it would slow down all the time when burning DAO on nero. Also I couldn't burn above 48x as flawlessly as they say it should be here.

Found 1.09 on a japaneese teac site, updated it and wow. I can burn any quality brand disk at speeds of 52x all day long even if the disk doesnt support 52x.

I DO recomend that you update the firmware to 1.09, and maybe that the site re-reviews the cdrw with updated firmware.
Unfortunately TEAC asked us to send the drive back to them, so re-reviewing is out of the question. Thanks for your input though, Crystallas!
Had one of these drives for a few months now, and haddn't considered updating the Firmware, just poped to the Teac site and the drive is now up to 1.14 and reading the changes applied, said to me that they had read this review !! e.g. CD-RW read speed up to 40x
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