Freecom FC-1
7. Writing quality - 3T Jitter Tests
Freecom FC-1 - Page 7
Writing Quality Tests - 3T Jitter Tests
In this test we burnt an audio compilation onto several media brands, in order to check the drive's compatibility with different media brands. In all cases the compilation was exactly the same and the burning software was Nero Burning Rom.
- 3T Pit results
As can be seen from the graph above, TY 52x, CMC 52x and Maxell 52x media all exceeded the 35nsec limit, mainly towards the end. From the rest, MAM 40x had very good levels with Creation 52x close behind.
The average 3T Pit Jitter table below simply confirms our conclusion from above, MAM and Creation having the lowest values.
- 3T Land results
The 3T Land Jitter results don't really present a very different picture from the Pit Jitter results. Here too, TY 52x and Maxell 52x media again over step the limit of 35ns. All other media had very good levels.
|
Media Brand
|
Average 3T Pit Jitter (ns)
|
Average 3T Land Jitter (ns)
|
> 35ns
|
Max 3T jitter values (ns)
|
|
Maxell
|
33.17 |
31.41 |
Yes
|
40 Pit, 38 Land
|
|
Ritek
|
30.12 |
26.17 |
No
|
35 Pit, 30 Land
|
Cmc
|
32.27 |
28.68 |
Yes
|
38 Pit, 31 Land
|
HiSpace
|
29.83 |
27.95 |
No
|
34 Pit, 30 Land
|
Creation
|
28.27 |
25.49 |
No
|
34 Pit, 30 Land
|
Mam
|
27.78 |
28.02 |
No
|
30 Pit, 31 Land
|
Taiyo Yuden
|
34.41 |
29.80 |
Yes
|
37 Pit, 33 Land
|
- Summary
The Freecom FC-1 in general did not provide high jitter levels. Apart from Maxell, CMC and TY media which exceeded the 35ns level (mainly in the pit jitter), the remaining brands performed quite well.
On the following page we examine the C1 and C2 error rates.
