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| Posted by | Wendy Collins |
| Posted on | 12/08/05 17:20 |
| Number of views | 11311 |
Writing Data CD-R Discs:
A glance at the specifications of the Lite-On SOHR-5238S states that the drive is able to write CD-R discs at 52x. Now it is time for us to find out how the drive really performs in speed and quality.
For our data writing tests, we set up a new compilation of 702Mb using Nero Burning ROM software. Writing method used is DAO (Disc At Once), and the disc is set up as a non-multisession disc with 'finalise disc" enabled. The screenshot below shows how long it takes to write a disc at the highest speed. (52x):

As we can see from the screenshot above, the Lite-On SOHR-5238S took 2 minutes 33 seconds to complete the burn at 52x.
Write Quality:
For these tests we will be using 10 CD-R media from 9 different manufacturers.
To really measure the write speed, we used the 'create data CD" function in Nero CD-Speed. The discs were written at the maximum speed that the drive supports.
For the quality test, we used K-Probe 2 which is a tool developed by a Lite-On employee. It runs under Windows and works with drives made by Lite-On. Also note that different drives and different reading speeds may affect the results obtained when scanning the discs. We used our review drive and scanned the discs at 48X speed.
A written CD-R disc will always have some C1 errors; C1 errors are easily corrected by the drive's error correction capabilities. The next level of errors is C2, while C2 errors could also be corrected by most drive's error correction capabilities; they are not wanted on a good quality disc.
A good disc should not contain any C2 errors and preferably have an average C1 error amount of below 2.0 for the best discs. This should be at least below 10.0 for good quality discs.
After C2 errors, there are only un-correctable errors that will make a disc unusable.
Below Are The Test Results:



|
Brand: |
EMGETON Qauarelle - Thanks to Bell Technology (CZ) for sending us this media. |
|
Manufacturer: |
Fornet International Pte. Ltd. |
|
Code: |
97m26s07f |
|
Disc Type: |
CD-R |
|
Recording Layer: |
Dye Type 7: Short Strategy (Phthalocyanine) |
|
Capacity: |
79:59.71 (703 MB) |
|
Certified Speed: |
56x |
|
Write Speed: |
52x (CAV) |
|
Write Time: |
2m:33s |
|
C1 Average/Sec: |
4.05 |
|
C2 Average/Sec: |
0.0 |
K-Probe shows that C1 errors are on the increase at the end of the disc, with a C1 average of 4.05, this is still quite a good quality burn, and there are no C2 errors.



|
Brand: |
Infiniti Professional White Top Printable - Thanks to Medea International (UK) for sending us this media. |
|
Manufacturer: |
CMC Magnetics |
|
Code: |
97m26s66f |
|
Disc Type: |
CD-R |
|
Recording Layer: |
Dye Type 6: Short Strategy (Phthalocyanine) |
|
Capacity: |
79:59.71 (703 MB) |
|
Certified Speed: |
52x |
|
Write Speed: |
52x (CAV) |
|
Write Time: |
2m:31s |
|
C1 Average/Sec: |
2.79 |
|
C2 Average/Sec: |
0.00 |
Very good result with the average of C1 errors at 2.79 and no C2 errors. This places this disc in the 'good quality disc" category.



|
Brand: |
Infiniti Samurai Lava Red - Thanks to Medea International (UK) for sending us this media. |
|
Manufacturer: |
SKC |
|
Code: |
97m26s26f |
|
Disc Type: |
CD-R |
|
Recording Layer: |
Dye Type 6: Short Strategy (Phthalocyanine) |
|
Capacity: |
79:59.09 (703 MB) |
|
Certified Speed: |
52x |
|
Write Speed: |
52x (CAV) |
|
Write Time: |
2m:38s |
|
C1 Average/Sec: |
3.64 |
|
C2 Average/Sec: |
0.0 |
Another fast burn and good quality with a C1 average of 3.64 and no C2 errors. Once again this places this burn in the 'good quality disc" category.



|
Brand: |
MMORE - Thanks to MMORE (NL) for sending us this media. |
|
Manufacturer: |
Moser Baer India Limited |
|
Code: |
97m17s06f |
|
Disc Type: |
CD-R |
|
Recording Layer: |
Dye Type 6: Short Strategy (Phthalocyanine) |
|
Capacity: |
79:59.74 (703MB) |
|
Certified Speed: |
1x-52x |
|
Write Speed: |
52x (CAV) |
|
Write Time: |
2m:36s |
|
C1 Average/Sec: |
1.72 |
|
C2 Average/Sec: |
0.0 |
The MMORE media - manufactured by Moser Baer India Limited produced a very good quality burn with its C1 error average of 1.72 it goes in the 'best quality discs" category.



|
Brand: |
Plextor |
|
Manufacturer: |
Taiyo Yuden |
|
Code: |
97m24s01f |
|
Disc Type: |
CD-R |
|
Recording Layer: |
Dye Type 1: Long Strategy (Cyanine, AZO) |
|
Capacity: |
79:59.72 (703MB) |
|
Certified Speed: |
48x |
|
Write Speed: |
48x (CAV) |
|
Write Time: |
2m:37s |
|
C1 Average/Sec: |
0.43 |
|
C2 Average/Sec: |
0.0 |
Taiyo Yuden has a great reputation for quality media and this burn is no exception, a fast burn with great quality and with a C1 error average of only 0.43, it goes into the group 'best quality discs". Highly recommended!



|
Brand: |
That's Write! - Thanks to That's Write! (NL) for sending us this media. |
|
Manufacturer: |
Sony Corporation |
|
Code: |
97m24s16f |
|
Disc Type: |
CD-R |
|
Recording Layer: |
Dye Type 6: Short Strategy (Phthalocyanine) |
|
Capacity: |
79:59.74 (703MB) |
|
Certified Speed: |
52x |
|
Write Speed: |
40x (CAV) |
|
Write Time: |
3m:01s |
|
C1 Average/Sec: |
7.16 |
|
C2 Average/Sec: |
0.0 |
The Lite-On SOHR-5238S did not burn this normally good quality media very well. K-Probe shows there are problems at the start of the burn with high C1 errors and C2 errors. This is a pity as the C1 average of 7.16 would have classified this disc as a 'good quality disc".



|
Brand: |
Verbatim Super AZ0+Crystal DL |
|
Manufacturer: |
Verbatim |
|
Code: |
97m34s23f |
|
Disc Type: |
CD-R |
|
Recording Layer: |
Dye Type 3: Long Strategy (Cyanine, AZO) |
|
Capacity: |
79:59.70 (703MB) |
|
Certified Speed: |
52x |
|
Write Speed: |
52x (CAV) |
|
Write Time: |
2m:33s |
|
C1 Average/Sec: |
0.34 |
|
C2 Average/Sec: |
0.0 |
This an outstanding quality burn from this extremely good quality media. With a C1 error average of 0.34, this puts this media in the 'Best Quality Disc" category. Highly recommended!



|
Brand: |
Verbatim - Thanks to Verbatim (D) for sending us this media. |
|
Manufacturer: |
CMC Magnetics |
|
Code: |
97m34s23f |
|
Disc Type: |
CD-R |
|
Recording Layer: |
Dye Type 6: Short Strategy (Phthalocyanine) |
|
Capacity: |
79:59.73 (703MB) |
|
Certified Speed: |
52x |
|
Write Speed: |
52x (CAV) |
|
Write Time: |
2m:29s |
|
C1 Average/Sec: |
4.29 |
|
C2 Average/Sec: |
0.0 |
Another Verbatim, this time the disc was manufactured by CMC Magnetics. A good quality burn with a C1 average of 4.29, puts this disc into the 'good quality disc" category.



|
Brand: |
Traxdata 52X Printable |
|
Manufacturer: |
RITEK |
|
Code: |
97m15s17f |
|
Disc Type: |
CD-R |
|
Recording Layer: |
Dye Type 7: Short Strategy (Phthalocyanine) |
|
Capacity: |
79:59.73 (703MB) |
|
Certified Speed: |
52x |
|
Write Speed: |
52x (CAV) |
|
Write Time: |
2m:30s |
|
C1 Average/Sec: |
0.67 |
|
C2 Average/Sec: |
0.0 |
An excellent quality burn. As we can see, the C1 average of 0.67 is extremely good and places this disc into the 'best quality disc" category.



|
Brand: |
Traxdata 16X |
|
Manufacturer: |
Prodisc Technology |
|
Code: |
97m32s19f |
|
Disc Type: |
CD-R |
|
Recording Layer: |
Dye Type 9: Short Strategy (Phthalocyanine) |
|
Capacity: |
79:59.73 (703MB) |
|
Certified Speed: |
16x |
|
Write Speed: |
40x (CAV) |
|
Write Time: |
3m:04s |
|
C1 Average/Sec: |
1.54 |
|
C2 Average/Sec: |
0.0 |
This disc threw up a bit of a surprise as the disc was an old one and as we can see from the media picture the disc is actually rated at 16x. When we saw that the drive rated this media at 40x we was sure if we burned the disc at this speed it would have been a coaster.
As we can see from the K-Probe result, the disc has burned at 40x and still managed outstanding results. With an average of C1 errors of 1.54, this places this disc into the 'best quality disc" category. It's such a pity this disc is no longer on sale.
This concludes our CD-R write tests.
Overall thoughts:
Its quite clear that the Lite-On SOHR-5238S can burn CD-R media quickly, and in most cases with very good quality.
Let us now move onto our CD-RW write tests on the next page

And CD-RW-quality is pathetic


but still cant find the media thats give the best results with this drive till now..









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