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Yamaha CRW2200E - CD-ROM Performance Results

  August 9, 2001 Author: Tim Zakharov  

For an overview on methodology, click here.

CD-ROM Performance Results

Low-Level Measurements

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Ziff-Davis' CD Winbench 99 measures sustained transfer rates and random access times.

Like the previous-generation CRW2100E, the CRW2200E lags behind the other 40X max readers. While minimum read speeds approach 19X, maximum reads are limited to 38X. This keeps the Yamaha about 7% behind the Plextor in read speeds.

The CRW2200E averages 133 ms in our random access measure. Though significantly swifter than Yamaha's 150 ms specification, it still trails all but the Plextor in our comparison.

CD-ROM Winmark 99

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CD Winbench 99's CD-ROM Winmark test runs through a timed script of routines from a variety of popular software programs. The presented score averages results from four different test discs obtained from Ziff-Davis. This tests each drive's ability to read from a range of discs pressed with identical data.

The CRW2200E averages 1185 KB/sec, improving slightly on the 2100E's performance. This places the Yamaha 3rd in the comparison, 20% slower than the Ricoh. Impressively, the Yamaha's scores vary by only 1% between the four test discs. This indicates that the drive reads at maximum speeds with a variety of pressed media. The 2100E, on the other hand, yields scores varying by 14%, frequently reducing read speeds during the test.

File and Disc Copy

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The file copy test places emphasis on sequential transfer rates by copying a single, 634 MB file. Here the CRW2200E again improves on its predecessor slightly with a copy time of 2:46. Only Ricoh's MP7200A completes this copy quicker.

The disc copy test introduces random accesses, due to the multiple files and folders on the test CD. Although the CRW2200E's copy time of 3:33 is only good enough for 4th place in our comparison, there is a tremendous improvement over the CRW2100E. The previous-generation Yamaha reduced spindle speeds frequently during the copy process, resulting in slow copy times. The 2200E again shows better consistency with pressed media.

Digital Audio Extraction

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SR measures DAE using two programs: CDSpeed99 and CDDAE99. CDSpeed99 assesses low-level DAE capabilities, while CDDAE99 is an actual audio ripping program that converts audio tracks on CD-DAs to .wav files on the hard drive.

When testing the CRW2100E (and the CRW2100S), we found it had problems extracting from scratched discs at full speed (indeed, Yamaha released a firmware update shortly after for "Improved audio ripping performance of a scratched source CD"). While we no longer have a CRW2100E to test Yamaha's firmware update, we have noticed that the issue returns with the 2200E. CDSpeed99 reports an average DAE of 26X, nearly identical to the 2100E (even the dip in the transfer rate graph looks similar). This leaves the Yamaha about 15% behind the other two 40X CAV extractors in our comparison. To narrow the cause down to scratches, two identical audio CDs (Extreme's "III Sides to Every Story") differing only in surface quality were used. One has normal wear from years of use while the other is brand new and used only in our formal tests. CDSpeed99 graphs:

DAE with the scratched disc

DAE with the new disc

Despite the dip in the extraction graph, CDSpeed99 reports perfect extraction quality and accurate streaming.

CDDAE99 confirms the issue. The test disc extracts in 2:37 for an average rate of 25X. By comparison, the Plextor extracts the same disc in 2:20 (28X). The pair of Extreme CDs again confirmed the issue. The brand new disc extracts in 2:52 for a 26.4X average, while the scratched version of the same disc extracts in 3:14 (23.5X). Like CDSpeed99, CDDAE99 does not report any extraction errors, so despite the slowdown, extraction quality isn't affected.

CD-DA Error Correction

Digital Recordings' CD-CHECK tests each drive's error correction abilities with audio CDs. CD-CHECK is a reference disc with five levels of error gap sizes, each isolated to its own track. Error size and other details may be viewed by clicking here.

In each track, a continuous 20-second tone is played. The larger the error gap, the more difficult it is for the drive's error correction to mask the error without an audible pop or click occurring during playback of the tone.

All drives are tested by playing each track five times with each successful playback (no audible pops or clicks) noted. A result of 5/5 indicates that no pops or clicks were heard in 5 out of 5 playbacks of a particular track. A result of 0/5 indicates pops or clicks occurred during all 5 playbacks of a particular track. Digital Recordings provides the following interpretation of results:

  • Level-1 Pass: Player meets minimum requirements
  • Level-2 Pass: Average error correction
  • Level-3 Pass: Good error correction
  • Level-4 Pass: Very good error correction
  • Level-5 Pass: Excellent error correction
CD-Check Performance
Error Level 1 2 3 4 5
Yamaha CRW2200E 5/5 0/5 0/5 0/5 0/5
Ricoh MP7200A 5/5 5/5 0/5 0/5 0/5
AOpen CRW1232A 5/5 5/5 4/5 0/5 0/5
Plextor PX-W1610TA 5/5 5/5 5/5 5/5 0/5
Teac CD-W516EB 5/5 5/5 5/5 5/5 0/5

The Yamaha produces the worst error correction results yet seen. While Level-1 passes 100% of the time, all other levels deliver countless pops and crackles. Therefore, as a CD-DA player, the Yamaha meets only minimum error correction requirements. Perhaps this is related to the drive's problems with less-than-perfect media in DAE tests.

CD-R Media Compatibility and Performance

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To test each drive's ability to read from a variety of CD-R and -RW media, we duplicate our pressed test CD to these discs and measure low-level performance with them.

The CRW2200E improves on its pressed CD transfers with minimum rates of 2840 KB/sec (19X) and maximum rates of 5760 KB/sec (38X). However, with many CD-Rs (the disc utilized in the transfer rate test - TDK 12X Certified with blue dye - happens to be an exception), transfer rates become jagged towards the outer edge. No correlations arise - it appears almost random as to which discs will have smooth transfer graphs and which will have jagged ones. This even occurs whether the CD-Rs are burned on the Yamaha or by other burners. Only Verbatim's 16X media with azo blue recording dye consistently delivers smooth graphs. Even Yamaha's own 20X certified media occasionally creates jagged graphs. Reduced read speeds seem to be the only consequence within these jagged areas.

CD-RW Media Compatibility and Performance

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With CD-RW media, transfer rates improve yet again to 2880 KB/sec inside and 5857 KB/sec (39X) outside. No issues arise with low- and high-speed CD-RW media from TDK, Verbatim, Memorex or Sony. All transfer rate graphs remain perfectly smooth. The CRW2200E proves to be the 2nd fastest CD-RW media reader ever tested.

 Write/ReWrite Performance Results...


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