Plextor PX-S2410TU portable CD-RW drive - Page 7

Writing Quality Tests

We used Taiyo Yuden 80min 40X CD-R media and burned the same AudioCD project (with CD-Text) at all recording speeds from 4X-24X. 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 for all the available recording speeds. The jitter value is constant for all the area of the disc, for the 4X and 10X writing speeds, where the CLV recording strategy is used. In the 16X and 24X the Z-CLV recording seems to produce slightly higher jitter values, but again the performance is very good.

The average 3T Jitter values for all recording speeds are illustrated in the following table.

The average value of jitter is less than 35nsec for all the recording speeds. Since the differences in the average jitter values is very small, we could say that you can safely burn your favorite audio discs in any available speed.

- 3T Land results

The 3T Land results are slightly increased over the in the previous measurements of the 3T Pit Jitter. The maximum jitter values reported were 32ns, and come from the measurements on 16X and 24X recorded discs.

- Conclusion

The average 3T Pit and Land jitter values are below the 35nsec standard for all the recording speeds. The combination of low writing speeds and the CLV writing technology seems to guarantee the quality results. But also the Z-CLV technology adopted for 16X and 24X speeds does not affect the writing quality.