Due to the variability between media, burns, etc., I decided to do the following for comparison purposes. For a given media from the same spindle, I made three burns with the same image file on my Pioneer DVR-116DBK and 117DBK. Since I'm also interested in how they compare to the Optiarc AD-7200 and 7240, I did the same for those drives as well. I started with Verbatim DVD-R (16x) MCC03RG20 media, but even with just that media it took a lot of runs and scans. I have all of the scans, but am not sure if everyone wants to see all of them, only the 116 and 117 scans, or something else. I did summarize the results in a spreadsheet, which I'm attaching. Feedback encouraged on whether this is useful, if you want to see some or all of the plots (in this thread or another), and for other media that I have access to.
Comparison Burn Summary.xls (27.5 KB)