I've been testing incremental writing using the Sony DW-22A drive which is the Liteon 1633s drive.
Two observations that I have seen is that write performance is slow
The other problem is that I see write 10 errors on the second layer which turn the disc into a coaster. Failure rate is in the 90% range.
The only application that supports incremental writing to this drive is Pinnacle on the consumer side. I'm also working with other non consumer applications that have worked great with DVD-R media but are problematic with DVD+DL media.
I searched the forum but looks like most of writing is DAO.
Has anyone else tried incremental recording with DL media and their experiece.