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Home > Hardware Reviews > Optical Storage > 40x CD-RW

Thursday, May 09, 2002
LiteOn LTR-40125W CD-RW

3. Writing Quality tests

LiteOn LTR-40125S P-CAV Recorder - Page 3

Writing Quality

We used Mitsui 80min 32x & 40x certified media burned many CDs at 32x and 40x recording speeds with LiteOn LTR-40125S. We used Nero 5.5.8.2 as a CDR software. The produced CDs were measured by DigitalDrives and the results are illustrated in the following tables:

32x writing speed
Brand
C1
Average Burning Time (mins)
Max
Average
Mitsui 74min 32x (SmartBurn On)
82
2.3
3:07
Mitsui 80min 32x (SmartBurn On)
21
0.4
3:17

As it seems with 74min CDs, LiteOn LTR-40125S has some problems to keep the writing quality high in the first 10 minutes. The drive makes a high peak at around 5mins, which is worrying. The writing quality in the rest of the disc seems very good. This problem was not noticed when writing 80min CDs, and the average C1 error rate is low (0.4). Below is the C1 error rate graph when writing 74min CDs:

40x writing speed
Brand
C1
C2
Average Burning Time (mins)
Max
Average
Max
Average
Mitsui 74min 32x (SmartBurn On)
379
4.2
0
3:00
Mitsui 74min 16x (SmartBurn On)
25
3.1
2:59
Taiyo Yuden 74min 24x (SmartBurn On)
8
0.2
2:59
Taiyo Yuden 74min 24x (SmartBurn Off)
13
0.2
2:59
Ricoh 74min 24x (SmartBurn On)
28
1.6
3:00
Mitsui 80min 32x (SmartBurn On)
22
0.7
3:09
Mitsui 80min 32x (SmartBurn Off)
19
0.6
3:07
Imation 80min 32x (SmartBurn On)
137
4.4
161
0.3
3:09

When writing at Mitsui 74min CDs the drive again has problems and produces high C1 error rate in the first 10 minutes. With other media, even with Mitsui 16x the error rate is lower. Especially with Taiyo Yuden media, the C1 average error rate is 0.2. The picture below comes from Mitsui 74min 32x certified:

With Imation 80min 32x CDs, the drive produced C2 (un-correctable) errors in the end of the disc:




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