Sorry for replying to an old post, just reading through the posts!
I was thinking on this quite a while ago (when I bought my Plextor 2410). I wrote a simple burn program (RAW/DAO96) and enabled Burn-proof. In a certain sector, I stopped sending data to the burner for a long time (5 mins!), and then continued burning. I could NOT find any difference in reading times for that sector and other ones.
If you think it's possible, you might try doing what I did, no need to write the sector, the drive will do it for you!
And the final question: If there is such a link sector, how old drives can read discs containing it? Correct me if I'm wrong!