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Teac CD-W516EB - CD-ROM Performance Results

  June 25, 2001 Author: Tim Zakharov  

For an overview on methodology, click here.

CD-ROM Performance Results

Low-Level Measurements

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The Teac upholds its 40X max specs with measured read speeds of 20X at the inner tracks and nearly 41X at the outer tracks. Only the Plextor is marginally faster.

The Teac meets its specified 80 ms access time. This surpasses our previous CD-RW champion, Teac's CD-W512E. Let's see how these low-levels translate into application-level performance.

CD-ROM Winmark 99

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As one may expect, the CD-W516EB turns in the best Winmark score yet seen for a burner: 1360 KB/sec. Only Ricoh's MP9120A and the CD-W512E come close. Thanks primarily to superior access times, the Teac is anywhere from 20% to 28% faster than the same-generation competition from Plextor and Yamaha.

File and Disc Copy

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The CD-W516EB continues to shine in file and disc copy tests. The file copy test emphasizes sequential transfer rates; the Teac edges Yamaha's CRW2100E with a copy time of 2:47. Both drives remain well ahead of the rest of the competition.

The disc copy test places more emphasis on random access times and as expected, the Teac excels here too. Its copy time of 3:08 is 9% quicker than the next fastest drive, Plextor's PX-W1610TA. It is clear that the CD-W516EB is the fastest CD reader among all burners we've yet tested.

Digital Audio Extraction

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According to the spec sheet on Teac Japan's website, the CD-W516EB uses a method called Zone CAV to read CD-RWs and CD-DAs (digital audio extraction). In this particular implementation, Zone CAV looks very similar to Partial CAV.

This allows the Teac, despite only 32X maximum DAE spec, to average over 28X across an entire CD. This is only 5% slower than Plextor's true 40X CAV DAE and ends up reducing drive RPMs (and thus noise levels) along the outer portion of a disc. For example, on our 65-minute audio CD, 32X is reached by the 35-minute mark at a steady 8500 RPM. By the end of the disc, RPMs have reduced to near 7000. CDSpeed detects no read errors and shows support for accurate streaming.

CDDAE99 confirms the CDSpeed99 figures. The Teac was able to extract the entire audio test CD to .wav files on the hard drive in only 2:26, an average of 27X. The Plextor, in comparison, takes 2:20 to extract the same disc. In addition, individual tracks extract at expected speeds (first track at 19X, last track at 32X). Like CDSpeed99, CDDAE99 reports perfect extraction quality, with zero errors found when verifying extracted .wav files.

CD-R Media Compatibility and Performance

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The Teac maintains 40X max read speeds with CD-R media. Access times improve slightly to 77.4 ms. There are no issues reading from a variety of brands of CD-R media with different dye colors.

CD-RW Media Compatibility and Performance

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As mentioned earlier, the CD-W516EB uses Zone CAV to read CD-RW media. Transfer rates at the beginning are equal to pressed CD and CD-R results, but if you examine the graph, you'll see that at about 335 MB into the disc, the drive switches to 33X CLV reads for the remainder of the disc. Because read speeds remain constant in this zone, spindle speeds steadily decrease as the read laser moves outward along the disc.

 Write/ReWrite Performance Results...


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