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This story was printed from CdrInfo.com,
located at http://www.cdrinfo.com.

Appeared on: Wednesday, February 06, 2002

1. Introduction
TEAC CD-W28PU - Page 1

- Introduction

is one of those companies that have chosen to support the USB 2.0 interface, and take advantage of all those the interface can offer regarding the performance and the easiness of installation. As it is well known, USB 2.0 has a raw data rate at 480Mbps, and it is rated 40 times faster than its predecessor interface, USB 1.1, which tops at 12Mbps. We have already tested the Teac CD-W280PU external CD-RW drive, which was the Japanese version of the drive we currently have in our hands. Teac CD-W28PU is the drive contained in the European retail package and supports 8x CDR writing, 8x CD-RW writing and 24x reading speed. Competition by Plextor, CyQve and other manufacturers is already established and we couldn't resist to a straight performance comparison.

- Package

The European retail package contains the CD-W28PU drive unit, the AC adapter, the USB interface cable, an installation floppy disc, Nero Burning Rom v.5.5 writing software, an information CD-ROM with manuals and specifications, and the user's manual. The package is priced at $225.

As you can see in the picture, the drive has basically a metallic gray color. It is manual top loading / manual eject and on the top you will find the eject button, the power/busy indicator led, which indicates the status and the operation states of the drive, and the write indicator led, which shows the write status of the drive. On the left side of the drive there is the 3.5mm line output jack for analog audio. On the right side there is DC-IN connector, in which is connected the provided dedicated AC adapter.

Teac CD-W28PU weights only 450 g and its dimensions are 140 x 15 x 146 mm (WxHxD). The drive supports 8x writing speed, 24x CAV cd-r reading speed, and 8x CLV cd-rw reading speed. TEAC standard gives the drive a 110 msec access time (random stroke).

Right Side!

Left Side!

Back of the drive!

- Installation

The drive was installed through the package included USB 2.0 cable to the PC card and was powered by the provided AC adapter. Note that the drive can also be connected through the USB 1.1 interface, but with a lower reading/writing performance. Teac CD-W28PU was identified as "TEAC CD-W28E". As Nero reports, the drive supports 8x writing speed, buffer underrun protection, cd-text, DAO, and has a 2 MB buffer although Nero reports only 1280 KB. On the other hand, Teac CD-W28PU does not support the overburning function. The drive is a December 2001 model and the firmware installed was vU1.B1

2. Data Tests

TEAC CD-W28PU - Page 2

Data Tests

For comparison, we illustrate the performance of some compatible drives in all of our result graphs. These drives are PlexWriter PX-S88TU, TEAC CD-W280PU, (Japanese version), and CyQve RW8080A.

- SCSI Mechanic v3.0x results

As expected, TEAC drives have the same performance and gave the best transfer rate in the average Random I/O and the Same Sector I/O tests. In the sequential I/O test, the drive comes second close to Plextor PX-S88TU.

- Pressed disc results: (Click to view the CD Speed graphs)

We confirmed the previous results with the CDSpeed test, as TEAC CD-W28PU gave the third best average reading speed, close to PlexWriter.

In the same test, we get the access times of TEAC CD-W28PU. The drive leads in the random access test, and keeps the good performance in the 1/3 and full access mode test.

- CDR Media results: (Click to view the CD Speed graphs)

TEAC CD-W28TU showed the same behavior with the cdr media as with the pressed media.

- HS-RW results: (Click to view the CD Speed graphs)

Teac CD-W28PU read the inserted HSRW disc at 8x average speed, 2x slower than CyQve RW8080A.

3. CloneCD Reading Tests

TEAC CD-W28PU - Page 3

CloneCD Reading Tests


We used CloneCD (v3.3.4.1) and 5 original CDs - Euro 2000 (SafeDisc 1), No One Lives For Ever (SafeDisc 2), Rally Masters (LaserLock 1), Desperados (LaserLock 2) and V-Rally 2 Expert (SecuROM 2) - in order to test the reading performance of TEAC CD-RW28PU. We also tested its reading performance with backups of the original CDs, since the reading speed varies between the original and the backup media. The following pictures show reading/writing capabilities for both drives:

The drive supports the RAW-SAO writing mode, is not compatible with CloneCD RAW-DAO mode, and supports buffer underrun protection and the write simulation option.





-PSX Pressed Media

For this test we used the PSX game 'NBA Jam Extreme' and we ripped the image to HD with CloneCD. We measured the reading times for both tested drives. TEAC is the winner here with only 103secs, while Plextor needs 19 more seconds to write the image:

- SafeDisc 1/2 Results

TEAC CD-W28PU had hard times to make the image of both SafeDisc 1/2 protected cds. The drive was very slow with the original and the backup discs.

- LaserLock 1/2 Results

TEAC CD-W28PU was fast with LaserLock v1 originally protected media, and gets the second position behind its brother TEAC CD-W280PU. With the backup media, PlexWriter holds the first place with 544.96 sectors/sec.

In the LaserLock v2 test the drive gave the best performance with the original cds and was slower with the backup ones, although the differences are small.

- SecuROM Results

In the SecuRom v2 test, both TEAC drives lead among the other drives with the original cds, and are slower with the backup titles, where CyQve RW8080A gave a better performance.

4. DAE Tests

TEAC CD-W28PU - Page 4

DAE Tests

- Test Method

We used CD DAE 99 v0.3 and EAC v0.9 beta 1 software in order to check the DAE performance of both drives with various AudioCDs (both pressed and CDR). The posted DAE results are the average of both applications. As a last note, we used the "BURST" reading mode of EAC. We made a full CD Rip starting from the first to the last track of the CD. The Average DAE reported speed along with the CPU Usage is displayed in the test graphs.

- DAE features

As the EAC v0.9 beta 1 reported, the TEAC CD-RW28PU drive does "Caching" of data, supports "Accurate Stream" and "C2 Error info


-Pressed AudioCD results

PleXWriter PX-S88TU supports up to 24x (CAV) DAE when both pressed and CDR media are inserted. On the TEAC CD-RW28PU DAE speed is locked at 8x (CLV), and therefore it cannot really compete against the PleXWriter:

-CDR AudioCD Results

With CDR media, the PleXWriter PX-S88TU still holds the first place with 13.3X average reading speed.

- EAC Secure Extract Ripping mode

For each drive we used the build-in detection function:

Drives tested
Average DAE speed
PlexWriter PX-S88TU
CyQve RW8080A

TEAC CD-RW280PU was much faster than TEAC CD-RW28PU, mainly cause it doesn't "caching" data. During the DAE process EAC reported many sync errors, however the final CRC for all tracks were ok.

-Advanced DAE Quality

All drives performed excellently in the Nero CD Speed Advanced DAE quality test. The TEAC CD-W28PU produced 0 data/sync errors and got a perfect score (100). As the Nero CD Speed reports, the drive can read SubChannel Data but not CD-Text format:

- Bad CDR Media results

Despite the fact that Nero CD Speed Advanced DAE test stretches a drive's mechanism to the max, we decided to do real life tests with a scratched disc. The disc was dirty, and with some light scratches, enough to cause problems to most of the tested drives. We used CD DAE 99 software to rip the whole disc (756539616 sectors) and the results were very interesting:

Average speed (X)
Produced errors
Total disc errors (%)
PlexWriter PX-S88TU
CyQve RW8080A

TEAC CD-W28PU did not give any read errors but the average ripping speed is limited to 2X. Low reading speed, but with perfect results!

- Ripping 90 and 99min CDs

TEAC CD-W28PU gave a read error at 90 min when a 90:28 min disc was inserted for a Nero CDSpeed reading test. The 99 min test gave an error at 96 minutes.

5. CDR Tests

TEAC CD-W28PU - Page 5

CDR Tests

TEAC CD-W28PU supports 8x (CLV) writing with USB 2.0 interface. We tested the drive with Nero v5.5.2.4, CloneCD v3.3.4.1 and Padus DJ v3.50.818 software. For the CDR tests we used: Creation 74min (16x), Taiyo Yuden 74 & 80min (24x), Mitsui 74min (24 & 16x) and Verbatim/TDK 74min HS-RW media.

- CD-R Tests

We created a "DataCD" job with data slightly higher than 74mins (74:03:65). We burned the same job with both drives, using the same media:

The TEAC CD-W28PU finished the burning task faster than PlexWriter and CyQve, and had exactly the same performance as TEAC CD-W280PU.

- 80min CDs

Following the same procedure as in the previous test, we created a DataCD with data lower than 80min (79:49:50).

As in the 74min burning test, TEAC CD-W28PU was the fastest writer at 8x, with the lower recording time.

-Writing Quality Tests

We used low quality media written at 8x, with both drives. The results are posted in the following table:

8x writing speed
Average Burning Time (sec)
PleXWriter PX-S88TU

Very good writing quality from TEAC CD-W28PU with just an 1.6 average C1 error rate and a maximum C1 value of 18.

- Overburning Tests

TEAC CD-W28PU does not support overburning.

- CD-Text Results

We created several AudioCDs with CD-Text enabled. TEAC CD-W28PU writes/reads CD-Text on CDR media without any problems.

- 8cm mini CDs

TEAC CD-W28PU support reading/writing of 8cm CDs

- CloneCD Tests

CloneCD v3.3.4.1 reports that the TEAC drive supports only SAO-RAW writing mode and has a buffer underrun protection. The drive does not support simulation. According to our tests, TEAC can backup only SD1, LaserLock1/2 protected titles.

- SD2 Support

For the SD2 tests we used the "No One Lives For Ever", "Emperor Battle for Dune" and "Max Payne" CD titles. We used the drive as reader/writer. The produced backups didn't play in the same or other drives. Therefore TEAC cannot produce SD2 working backups.

6. HS-RW / Packet Writing Tests

TEAC CD-W28PU - Page 6

RW Writing Tests

We used Nero for writing CDs in maximum RW writing speed (8X) with both drives in 10x HS-RW media. The TEAC leads the re-writing race with 598secs:

- Packet Writing Tests

We used Ahead InCD v2.26 for all Packet Writing tests. We used TDK HS-RW media and we formatted it. The formatted disc revealed 530mbs of free space. We copied a 403 MB file (403.147 kbs) from a Hard Disk (on the same PC as the writers) to the formatted RW media-using explorer (we dragged and dropped) and we completed the test twice to eliminate possible time measurement faults and user errors:

Teac CD-W28PU supports 8x CLV HSRW writing speed. The packet writing/reading performance is adequate and is close to PlexWriter's, mainly at the reading part.

7. Conclusion
TEAC CD-W28PU - Page 7


Positive (+)
Negative (-)

- Supports USB1.1/2.0 interfaces
- "Write Proof" anti-coaster technology
- Good data reading performance with both CDR/pressed media
- Low access times
- Good PSX ripping performance
- Good DAE quality
- Very good writing quality
- Supports CD-Text (reading/writing)
- Small dimensions
- Weights only 450g
- 2 years of warranty (only for Europe)

- Doesn't support overburning
- Doesn't support DAO-RAW
- Failed to backup SD2 protected CDs
- Low CloneCD reading performance with SD1/2 protected CDs
- DAE speed locked at 8x
- Very short attached USB2.0 cable :(

To sum up, TEAC CD-W28PU gave a good overall performance. The drive takes advantage of the latest version of the USB 2.0 interface standard to offer faster read and write speeds than have been possible to date with the interface. On the advantages, we should consider the good data reading/writing performance, the high DAE quality, and the low access times, and of course the small dimensions of the drive, among with the limited weight of 450gr. On the other hand, it doesn't support overburning neither DAO-RAW writing mode and is slow when ripping an audio CD to the HD. Lastly, the TEAC CD-W28PU costs around $225 (European package) and comes with 2 year of warranty (only for Europe).

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