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CD #1 Burned @40x:
Tested @8x
Tested @40x
 
Here we have the first of the 3 discs burned at the certified speed of 40x. As you can see, this disc performed very well on the low speed test, however it exhibited a large amount of C1 errors near the end of the disc. I followed the highspeed test up with a quick run through of Nero's CD-Speed: ScanDisc, and it reported the last 10.62% of the disc to be damaged, although none of the blocks were unreadable, and all the files were intact.
 




 
CD #2 Burned @40x:
Tested @8x
Tested @40x
 
This is the second disc burned at the certified speed of these discs (40x). Like the first disc, we see a very good score on the low speed test, but the high speed test shows a very large amount of C1 errors near the end of the disc. Once again I ran CD-Speed's ScanDisc on the CD, and it reported the last 11.97% of the disc to be full of damaged blocks. As before however, no blocks were unreadable, and all the files were completely intact.
 




 
CD #3 Burned @40x:
Tested @8x
Tested @40x
 
Finally we come to the 3rd and final CD-R burned at the certified speed of 40x. This disc followed suit with the first 2 discs, first performing well on the low speed test, and then performing somewhat poorly on the high speed test (near the end). A quick scan with Nero CD-Speed's ScanDisc shows that the last 13.03% of this disc is damaged, while the rest of it is labeled as good. Although the results from the high speed tests prevent this media type from being labeled as "great under 40x burning conditions", I do feel that it deserves some credit for its' consistent testing results between discs.
 




 
CD #4 Burned @48x:
Tested @8x
Tested @40x
 
For the sake of thoroughness, I have burned one of these discs at 48x to see how this media fairs when overclocked. As you can see, the results were less than encouraging! The disc was riddled with unreadable sectors and C2 errors! I took the extra time once again and ran Nero CD-Speed on the disc, and it was reported as having 25.85% damaged blocks, and 5.72% unreadable blocks! (the remaining 68.43% was labeled as good).
 


Introduction Certified Speed Tests Overclock Tests Underclock Tests Conclusion
Home CD-R/W Review Testing Methods Links How Can I Help? About Me