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Page 2 - Certified Speed Tests




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Introduction Certified Speed Tests Underclock Tests Underclock Tests Conclusion


 
CD #1 Burned @12x:
Verbatim 16x 80min Digital Vinyl CD-R Burned @12x Tested @8x
Verbatim 16x 80min Digital Vinyl CD-R Burned @12x Tested @40x
 
As was mentioned in the introduction to these discs, my drive was unable to burn them at 16x, and had to default to 12x.

Here we see some very interesting results, the low speed test shows a fairly good result with a reported C1 average of less than 1.3, but the high speed test shows a significant rise in C1 errors, with a reported C1 average of a little over 44!
 




 
CD #2 Burned @12x:
Verbatim 16x 80min Digital Vinyl CD-R Burned @12x Tested @8x
Verbatim 16x 80min Digital Vinyl CD-R Burned @12x Tested @40x
 
Whoa! what happened here?!?! The low speed test for this disc is even worse then the high speed test for the previous disc! And if you are wondering about those little green notches in the high speed test for this disc, they mean that there were unreadable sectors there. So what this test signifies is that even at low speeds you will have some difficulty reading this disc, but at high speed you will lose a portion of your data!
 




 
CD #3 Burned @12x:
Verbatim 16x 80min Digital Vinyl CD-R Burned @12x Tested @8x
Verbatim 16x 80min Digital Vinyl CD-R Burned @12x Tested @40x
 
Again we see a fairly poor result from this media! With the low speed test reporting an average of close to 32 C1 errors per sector, and the high speed test reporting almost 600 C1 errors per sector! And if you look at the data for the high speed test, you will see a small amount of C2 errors as well (although not visible on the graph due to the small amount)

Perhaps burning this media slower will increase the burn quality?
 


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