LiteOn LDW-811S Dual DVD recorder

Review Pages

1. Specifications - Instalation
2. Data CD Reading Tests
3. DVD Reading Tests
4. CD Error Correction Tests
5. DVD Error Correction Tests
6. Protected Disc Tests
7. DAE Tests
8. CD Recording Tests
9. 3T Jitter Tests 1
10. 3T Jitter Tests 2
11. C1 / C2 Error Measurements
12. DVD Recording Tests
13. PI / PO Error Measurements
14. Conclusion

LiteOn LDW-811S DVD±RW recorder - Page 11

Writing Quality Tests - C1 / C2 Error Measurements

The C1 / C2 error rate was measured for the recorded discs burned during the previous writing tests (jitter). The software used was UMDoctor Pro II, and the reader the Optorite DD0203 drive.

Taiyo Yuden 48x recorded at 8x

Taiyo Yuden 48x recorded at 16x

Taiyo Yuden 48x recorded at 24x

Taiyo Yuden 48x recorded at 32x

Taiyo Yuden 48x recorded at 40x

Fuji 40x recorded at 40x

Imation 48x recorded at 40x

MAM 48x recorded at 40x

SKC 48x recorded at 40x

Hi-Space 48x recorded at 40x

Below is presented information on the CD-R media used in this test.

Disc	ID Code	Capacity
Taiyo Yuden 48X	TaiyoYuden 97m24s01f	79:59:72
Fuji 40x	Fuji 97m:26s45f	79:59:73
Imation 48x	CMC Magnetics 97m26s66f	79:59:71
MAM 48x	Mitsui 97m27s58f	79:59:71
Hi-Space 52X	MPO 97m25s07f	79:59:00
SKC 48X	SKC 97m26s26f	79:59:73

- Summary

The results are very good. Firstly, there were no C2 errors reported (red line in each of the graphs above). The C1 levels were all very low and perhaps just as important is that the levels are all fairly constant for each disc, which is a good indicator of quality writing. The only glitch occurred with Taiyo Yuden media at 16x where at the end the C1 rate spiked.