32x CD-RW Roundup Vol2

Review Pages

1. Introduction
2. Introduction - Page 2
3. Data Tests
4. CloneCD reading Tests
5. DAE Tests
6. CDR Tests - Page 1
7. CDR Tests - Page 2
8. Writing Quality of AOpen
9. Writing Quality of CyberDrive
10. Writing Quality of Philips
11. RW-Packet Writing Tests
12. Conclusion
13. CDR Tests - Page 3
14. Introduction - Page 3

32x CD-RW Roundup Vol 2 - Page 10

Writing Quality Tests of AOpen CRW3248

We used many media ,mostly 24x certified, and burned them at various recording speeds with AOpen CRW3248. We used Nero 5.5.7.2 as the CDR software. The produced CDs, were measured from DigitalDrives and results are illustrated in the following tables. Note that almost all CDs were written with JustSpeed DISABLED:

- 20x writing speed

Brand	C1		C2		Average Burning Time (mins)
Brand	Max	Average	Max	Average	Average Burning Time (mins)
Taiyo Yuden 74min (24x)	13	0.6	0		4:26
Taiyo Yuden 80min (24x)	11	0.4	0		5:00

The C1 error rate at the 20x recording speed is low.

- 24x writing speed

Brand	C1		C2		Average Burning Time (mins)
Brand	Max	Average	Max	Average	Average Burning Time (mins)
Taiyo Yuden 74min (24x)	37	4.5	0		4:09
Taiyo Yuden 80min (24x)	11	0.4	0		4:25

At the 24x recording speed, the C1 error rate is increased but stays below CD standard limits.

- 28x writing speed

Brand	C1		C2		Average Burning Time (mins)
Brand	Max	Average	Max	Average	Average Burning Time (mins)
Taiyo Yuden 74min (24x)	12	0.9	0		3:47
Taiyo Yuden 80min (24x)	22	0.7	0		4:15

At the 28x writing speed, the AOpen CRW3248 has a low C1 error rate.

- 32x writing speed

Brand	C1		C2		Average Burning Time (mins)
Brand	Max	Average	Max	Average	Average Burning Time (mins)
Taiyo Yuden 74min (24x)	15	0.5	0		3:49
Mitsui 74min (24x)	14	0.4	0		3:45
Mitsubishi Chemicals 74min (24x)	167	17.5	1	0	3:48
Taiyo Yuden 74min (32x)	12	0.2	0		3:49
Mitsui 74min (16x) (JustSpeed On)	31	1.1			4:07
Mitsui 74min (16x) (JustSpeed Off)	18	0.8			3:50

Taiyo Yuden 80min (32x)	105	12.0	3	0	3:54
Mitsubishi Chemicals 80min (24x)	564	54.7	3	0	4:11
Mitsubishi Chemicals 80min (34x)	34	1.4	0		3:51
Ritek 80min (24x)	143	9.7			3:53
Ricoh 80min (24x) (JustSpeed On)	36	3.4			4:10
Ricoh 80min (24x) (JustSpeed Off)	31	3.7			3:53
Taiyo Yuden 80min (24x)	15	0.8			4:09

The AOpen CRW3248 shows a good behaviour at the 32x recording speed, mostly with TaiyoYuden 74min CDs. The drive seems not to have a stable performance with 80min CDs. In several cases produced a high C1 error rate and even C2 errors. Remember that the drive's firmware is still under 1.0 revision. Newer firmware updates could improve media compatibility.