16a7 trouble reading dual layer

My 16a7 has big trouble reading the second layer of an old scratched commercial pressed movie. My 1693 and 165h6 scan and read it well.

Here are four pictures:

  1. Disc Quality scan on 16a7
  2. Disc Quality scan on 165h6
  3. TRT on 16a7
  4. TRT on 165h6

I just noticed my 165h6 runs the TRT at a slower speed, so here are the results from my 1693. As usual, it reads the disc better than any of my other drives.