There have been very few posts related to Nero 9 and the posts I’ve seen have not been favorable. My own personal experience has not been pleasant. I’ve been an ardent user for many years but 9 was released with many problems.
as we all know, now, nero supports burning with "Layer-Jump Recording (LJR) …
Is it true that my recorder does not support LJR
Until the product is in enough people’s hands and Nero gets their act together, I don’t think your question can be answered.
Note: I went to their website and could not find any information in their support links for LJR.