Your report is neither good nor bad - it is simply showing the writing speed of your drive when writing a disc at 8x Z-CLV.
In order to get an idea of whether you have a good or bad burn, you should make a Read Transfer test with Nero CD-DVD Speed (e.g. by pressing F2). The best result is a completely smooth graph starting at 6.5x going all the way up to 16x (provided the disc is full).
Here's an example of what you want to see: