NEC ND-2500A DVD±RW recorder - Page 9

Writing Quality Tests - 3T Jitter Tests

On an 80min 48x CD-R disc from Taiyo Yuden we burned the same AudioCD project at 4x, 8x, 16x, 24x and 32x. The 3T Pit & Land Jitter graphs are presented here.

- 3T Pit results

Looking at the graph above, we can see that the NEC drive performed well within limits, where at all speeds the jitter was well below the Red Book limit. These are amongst the best Pit Jitter measurements we have seen from any drive.

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

The average Pit jitter values for all recording speeds are very good.

- 3T Land results

Once again we can see the excellent CD writing quality of this drive. Only in the case of 4x recording the jitter levels were slightly high, but none the less did not go over the 35ns limit. Besides, there are not going to be many users who will purchase this drive for 4x CD recording.

The following average values graph confirms the very good burning quality of the NEC recorder.

- Summary

Judging from the results presented on this page, the NEC ND-2500A has proved one of the best CD recorders with regard to quality that we have tested. The jitter levels with Taiyo Yudon media are very low for all speeds. The results on the following pages will show exactly how good a recorder the NEC drive is.