Freecom FX-50

Review Pages

1. Package - Installation
2. Data CD Reading Tests
3. CD Error Correction Tests
4. DVD reading tests
5. DVD Error Correction Tests
6. Protected Disc Tests
7. DAE Tests
8. CD Recording Tests
9. Writing quality - 3T Jitter Tests
10. C1 / C2 Error Measurements
11. DVD Recording Tests
12. KProbe PI/PO quality tests
13. Conclusion

FREECOM DVD+/-RW8J - Page 10

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 was the Optorite DD0203 drive.

Professional 48x recorded at 16x

Professional 48x recorded at 24x

Professional 48x recorded at 32x

Taiyo Yuden 48x recorded at 40x

AM 48x recorded at 40x

CMC Magnetics 48x recorded at 40x

Intenso 52x recorded at 40x

Maxell 48x recorded at 40x

Samsung 48x recorded at 40x

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

Disc	ID Code	Capacity
Professional 48X	TaiyoYuden 97m24s01f	79:59:72
AM 48x	Plasmon 97m27s18f	79:59:74
CMC Magnetics 48x	CMC Magnetics 97m26s66f	79:59:71
Intenso	Uknown 97m17s06f	79:59:73
Maxell 48X	Ritek 97m15s17f	79:59:70
Samsung 48x	Plasmon 97m27s18f	79:59:74

- Summary

Umdoctor's C1C2 measurements confirm the bad results seen in the Pit and Land Jitter measurements for the Freecom writer. All Professional written media gave back many C1 errors mainly at the outer region. Umdoctor was not able to report all errors for the AM media and the test ended at about the 70min of the disc.