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Home > Hardware Reviews > Optical Storage > DVD Recorders 8x

Tuesday, April 19, 2005
Pioneer DVR-K14L/K04L

3. CD Error Correction Tests

Using the ABEX test discs series from ALMEDIO with the Pioneer K14L, we get the following results...


Errors total
Num : 891594
Errors (Loudness) dB(A)
Num: 43631
Avg:-72.3 dB(A)
Max:-21.6 dB(A)
Error Muting Samples
Num: 6018
Avg: 2.3 Samples
Max: 612 Samples
Skips Samples
Num: 0
Avg: 0.0 Samples
Max: 0 Samples
Total Test Result
75.5 points (of 100.0 maximum)

The drive managed to achieve a total test result of 75.5 out of 100, which illustrates the ability of the drive with the specific test disc. The total error count is relatively low, while no samples were skipped. The performance is rather good.


Errors total
Num: 12
Errors (Loudness) dB(A)
Num: 4
Avg: -89.9 dB(A)
Max: -71.0 dB(A)
Error Muting Samples
Num: 0
Avg: 0 Samples
Max: 0 Samples
Skips Samples
Num: 0
Avg: 0 Samples
Max: 0 Samples
Total Test Result
94.1 points (out of 100.0 maximum)

The behavior of drive was much better in this case where it managed to correct almost all errors. The result was 94.1 points, while no muted or skipped samples were reported.

- CD-Check Audio Test Disc

In order to evaluate the sound reproduction and error correction capabilities of a CD player (currently the Pioneer K14L),
we used the CD-Check Audio Test Disc. The disc, designed and manufactured with error patterns,contains five tracks, with each track progressively harder to read and reproduced by the CD player. These tracks are referred as Check Level -1 through Check Level -5.

Using a software multimedia player, such as Windows Media Player in this case, the five tracks are reproduced, with a clear and successful reading on each track, as long as the tone reproduced is smooth, uninterrupted, without any skips or loops. Each of the levels passed, is a percent of the reliability of the sound reproduction of the tested device.

Error Level
Pioneer K14L/K04L

The drive passed only the first three Check Levels of the test, but in the third track not all the attempts were successful. The performance reveals less than average error correction. The fourth and the fifth levels include an error size of 1.125mm and 1.500mm respectively, and the drive produced continuous audible clicks over those tracks as do many of the drives we have reviewed in the past.

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