I tend to rarely burn -R, so I have some to spare. I'll run some tests for you on the Prodisc -R in the new packaging. I mainly use these for my older DVD Recorder that only takes -R.
Overall, I can't say Verbatim from BB has been amazing quality (under 100 PIF) for me in either CMC or Prodisc. I tend to wonder if they don't roll the spindles around on the floor at night while nobody is watching.
Scans in a bit.