Disc Quality test, different results

I’m new, I bought my first “real” drive and I was testing just for fun. I tried to test one disc few times to see how similar are these tests. I attached 5 images of 5 tests. All of them of the same disc.
I see that results 1, 2 and 3 look almost exactly the same. 4 and 5 are similar to each other, but different than 1,2,3.
4 and 5 didn’t reach 16x speed. Why? Why are the first three results different that two other? Why two other were performed with only 8x?

Disk quality test discussions generally go in the Blank Media forum or the subforum for your drive manufacturer.

Since you seem to be interested in the capabilities of your drive rather than the media you are testing, I’m moving your thread into the Optiarc forum.


we have a couple of basic articles about the scanning stuff here: http://club.myce.com/f96/
Just browse through the [B]Read First[/B] threads :wink:
Perhaps this one is a good point to start with: http://club.myce.com/f96/cdfreaks-presents-home-pi-pif-scanning-article-193873/