3. CD Error Correction Tests
2. Transfer Rate Reading Tests
3. CD Error Correction Tests
4. DVD Error Correction Tests
5. Protected Disc Tests - Reading Tests
6. DAE Tests
7. Protected AudioCDs
8. CD Recording Tests
9. C1 / C2 Error Measurements
10. Writing Quality Tests - Clover System Tests
11. DVD Recording Tests
12. CDSpeed/PlexTools Scans - Page 1
13. CDSpeed/PlexTools Scans - Page 2
14. CDSpeed/PlexTools Scans - Page 3
15. CDSpeed/PlexTools Scans - Page 4
16. CDSpeed/PlexTools Scans - Page 5
17. Writing Quality Tests - Almedio AEC-1000
18. DVDR DL - Page 1
19. DVDR DL - Page 2
20. Sony DRU-800A vs. SA300
21. BookType Setting
In the following tests, we check the drive's behavior when it comes to reading scratched / defective discs. The test discs we use are the ABEX series from ALMEDIO.
- ABEX TCD-721R
|Errors total||Num: 1176122|
|Errors (Loudness) dB(A)||Num: 53465||Avg:-73.2 dB(A)||Max: -34.9 dB(A)|
|Error Muting Samples||Num: 3774||Avg: 1.0 Samples||Max: 11 Samples|
|Skips Samples||Num: 0||Avg: 6.0 Samples||Max: 6 Samples|
|Total Test Result||76.5 points (of 100.0 maximum)|
The overall performance according to the graph is rather good. The total error count is not high, which is good, and the maximum error loudness just on the -35 dB(A) limit. Also, no samples were skipped and the total test result of 76.5 out of 100 is good.
- ABEX TCD-726
|Errors total||Num: 0|
|Errors (Loudness) dB(A)||Num:0||Avg: 0 Samples||Max: 0 Samples|
|Error Muting Samples||Num: 0||Avg: 0 Samples||Max: 0 Samples|
|Skips Samples||Num: 0||Avg: 0 Samples||Max: 0 Samples|
|Total Test Result||100.0 points (out of 100.0 maximum)|
The behavior of drive was much better in this case where it managed to correct all the disc's errors. The result was a perfect 100.
- CD-Check Audio Test Disc
The CD-Check Test Disc is a very useful tool for evaluating the Sound Reproduction / Error correction capabilities of a CD player. The disc offers a signal combination with disc error patterns to rate the drive's ability to read music and reproduce it completely. Five tracks on the disc contain a sequence of progressively difficult tests. These tracks are referred as Check Level -1 through Check Level -5.
The tracks are reproduced (played) through a software multimedia player (i.e. Windows Media Player). Each level is considered as passed, if the tone coming out from the speakers is smooth, continuous without interruptions, skipping or looping. The higher the Check Level passed, the more reliable the sound reproduction of the tested device.
The drive passed only the first three Check Levels of the test. The performance reveals average performance with the specific test disc. The fourth and the fifth levels include an error size of 1.125mm and 1.500mm respectively, and the drive produced continuous audible clicks over those tracks.