PleXWriter PX-W4012TS
7. Writing Quality Tests - Page 1
Review Pages
PleXWriter PX-W4012TS SCSI CD-RW - Page 7
Writing Quality Tests - Page 1
We used Plextor 80min 48X (based at Taiyo Yuden) CD-R media and burned the same AudioCD project (with CD-Text) at all recording speeds from 4X-40X and with the "VariREC +0" option. Below you can see the 3T Pit & Land Jitter graphs.
- 3T Pit results
As we can see from the above graphs, the 3T Pit Jitter stays below the 35ns RED book limit at 4X ~ 32X recording speeds. In the 40X (Zone-CLV) recording speed the drive produced higher jitter values after the 58min until the end of the disc. The average 3T Jitter values for all recording speeds are illustrated in the following table. The 4X recording speed produced the best results.
- 3T Land results
The 3T Land Jitter results are not very well, in the low recording speeds. The VariREC +0 feature produced 36ns values and again the 40X recording speed, after 58mins will give un-pleasant results. The16X recording speed produced the best results.
- Conclusion
|
Recording Speed
|
3T Pit Jitter (ns)
|
3T Land Jitter (ns)
|
> 35ns
|
Max value (ns)
|
|
4X
|
25.17
|
32.12
|
No
|
34
|
|
4X (VariREC +0)
|
26.98
|
33.78
|
Yes at
4-16mins |
36
|
|
8X
|
27.05
|
31.88
|
No
|
33
|
|
16X
|
27.39
|
28.61
|
No
|
30
|
|
20X
|
27.63
|
29.12
|
No
|
31
|
|
24X
|
28.17
|
29.80
|
No
|
31
|
|
32X
|
28.39
|
31.34
|
No
|
34
|
|
40X
|
32.44
|
35.49
|
Yes after 58mins
|
44
|
The results with Taiyo Yuden 48X media for the low recording speeds are not very well, especially for the 3T Land Jitter values. The VariREC +0 seems to cause worst side effects than the normal (DAO) 4X speed, while the 16X seems to produce the most balanced results. The 40X recording speed may not please Audiophiles since the increased 3T Jitter value after 58mins is not according to the RED book standard.
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