ASUS CRW4816A
7. Writing Quality Tests
Writing Quality Tests
We used many media and burned them at various recording speeds with the ASUS drive. The produced CDs, were measured from DigitalDrives and results are illustrated in the following tables.
- 32x writing speed (firmware v1.00)
|
Brand
|
C1
|
C2
|
Average Burning Time (mins)
|
||
|
Max
|
Average
|
Max
|
Average
|
||
|
Taiyo Yuden 80min (32x)
|
18
|
0.9
|
0
|
3:02 |
|
|
Hitachi-Maxell 80min (40x)
|
19
|
1.7
|
3:00
|
||
|
Prodisc 80min (32x)
|
26
|
2.0
|
3:00
|
||
|
SmartBuy 80min (32x)
|
116
|
15.9
|
241
|
1.2
|
3:00
|
- 40x writing speed (firmware v1.00)
|
Brand
|
C1
|
C2
|
Average Burning Time (mins)
|
||
|
Max
|
Average
|
Max
|
Average
|
||
|
Mitsui 80min (40x)
|
728
|
121.5
|
7
|
0
|
2:41
|
|
Imation 80min (32x)
|
676
|
65.3
|
749
|
29.1
|
2:58
|
- 48x writing speed (firmware v1.00)
|
Brand
|
C1
|
C2
|
Average Burning Time (mins)
|
||
|
Max
|
Average
|
Max
|
Average
|
||
|
Imation 80min (32x)
(under DAO-RAW with CloneCD) |
249
|
58.8
|
4
|
0
|
2:37 |
|
Philips 80min (40x)
|
76
|
4.4
|
0
|
2:44
|
|
|
Philips 80min (40x)
|
165
|
4.60
|
118
|
2.3
|
2:42
|
|
Taiyo Yuden 80min (40x)
|
33
|
1.1
|
2:43
|
||
|
Philips 80min (24x)
|
70
|
4.8
|
2:41
|
||
|
Imation 80min (32x)
|
257
|
48
|
2:42
|
||
ASUS 4816A has a really small list of supported media for 48x writing. From our test discs, only the Philips (Ritek), Imation (CMC Magnetics) and Taiyo Yuden media were allowed to burn at the maximum speed, with however not very good results. Only with Taiyo Yuden 40x media, the drive produces good results. With the rest media, high C1 error rate and even C2 error occur making the produced discs un-readable.
At the 40x recording speed, we had a strange result with Mitsui's 40x media. Nero reported 2:41mins, exactly the same for the 48x writing speed. We are not so sure if the results should be considered as 48x or 40x, but probably they show the 40x speed. Future firmware upgrades can improve the supported media list.
Below are some graphs from various media written at various speeds:
- Imation 80min 32x burned at 40x (P-CAV) recording speed.
The C1 error rate is increased after 35mins and 60mins, C2 errors are present. The error rate goes in normal levels after 70mins:
- Imation 80min 32x burned at 48x (P-CAV) recording speed.
The C1 error rate increases after 35mins towards the end of the disc. No C2 errors are present, making the disc readable.
- Philips 80min 40x burned at 48x (P-CAV) recording speed (first disc).
The C1 error rate increases after 50mins towards the 70mins, lowers between 70-75mins and is increased again at the end of the disc. No C2 errors are present, making the disc readable.
- Philips 80min 40x burned at 48x (P-CAV) recording speed (second disc).
The C1 error rate stays low until 60mins. After 70mins error rate raises and C2 errors are present making the disc partial un-readable.
- SmartBuy 80min 32x burned at 32x (P-CAV) recording speed.
The C1 error rate is high during the first 30mins and drops after 40mins. C2 errors are present between 22 and 32mins making the disc partial un-readable.
